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Winston-Salem · Concrete Lifting & Leveling

The Best Concrete Lifting in Winston-Salem, NC

Sunken driveways, tripping sidewalks, tilted patios, and settled garage slabs — lifted back to level with high-density polyurethane foam or traditional mudjacking. Cures in 15 minutes. Drive on it the same day.

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Concrete Lifting & Leveling in Winston-Salem

Why this matters here.

Last August I took a call on Barnesdale Rd in Sherwood Forest, one of the long low brick ranches built on the tract between Robinhood Rd and Peace Haven Rd back when the developer laid the whole thing out with Robin Hood street names. The owner had retired off a long career on the Wake Forest side of town and had watched the same thing happen every summer for four years without doing anything about it. The driveway apron at the garage door was sitting lower than the garage floor, and by the end of August the gap under the door had opened far enough that he could see daylight from inside the garage.

I laced a rotary laser from the garage slab out toward the street. The apron had dropped an inch and three quarters, the two panels above it were down about an inch, and the last thirty feet out at Barnesdale had not moved at all. Then I put a soil probe in at the slab edges, which is the test that actually answers the question. Out at the street the probe hit refusal at about two and a half feet, Pacolet clay running straight down into saprolite, the weathered mica schist and gneiss this whole side of the county sits on. At the garage end it went past five feet without much resistance. That is a fill line, and it told the whole story. Sixty years ago somebody cut the pad into the slope, pushed the spoil toward the low corner to make a flat building envelope, and poured concrete over both halves without thinking about the seam. The half on cut has not moved since the house was built. The half on fill has been consolidating ever since.

We lifted it on a Thursday. Five eighths inch ports on a sixteen inch grid, two part polyurethane through the gun, laser receiver clamped to the slab edge so he could stand there and watch the number come back to where it belonged. He parked on it that evening.

Now the second half of the story, because Winston-Salem hands you two completely different causes behind the same symptom. Three weeks later I was on Lockland Ave in Ardmore looking at a front walk that had dropped at the third panel out from the porch. Same laser, same probe, entirely different answer. That part of Ardmore sits on the divide between Peters Creek and Silas Creek, and both of those creeks were culverted and paved over during twentieth century parkway construction. Today they are road names. The subgrade under that walk was not consolidating the way the Sherwood Forest driveway was. It was washing. Fines were migrating out from under the concrete with groundwater that has nowhere natural left to go, because the channel that used to carry it is now pavement. Lifting that walk without dealing with the water first would have bought him about two years and a repeat visit.

That is the honest split in this market. A big share of what settles here is fill that went in too fast on a hillside lot. Another big share is water moving through subgrade on ground where the natural drainage got rearranged decades before anybody poured concrete. And then there is the soil itself, which is the third mechanism and the one people never see coming. Cecil is the North Carolina state soil and it is a shrink-swell clay. It takes on water and expands through a wet Piedmont spring, then gives that water up and contracts through a dry August, pulling away from footings and piers on the way. A single calendar year in Forsyth County can move a slab twice, in opposite directions, with nothing whatsoever wrong with the concrete.

The rest of the work looks the way it looks anywhere. Garage aprons separated from the stem wall with a dark gap under the weather seal. Front walks shoved proud by an oak root that has had ninety years to work. Porch slabs on nineteen twenties bungalows poured straight on graded clay with no stone under them. Patios tilted back toward the house. Condenser pads at an angle no compressor was built to run at. Same physics every time. A surface that used to rest on soil is now resting on air.

What makes it specifically a Forsyth County problem is relief. The built up part of the city sits roughly nine hundred to a thousand feet above sea level. The low point of the county is around six hundred sixty feet, where the Yadkin River leaves the southwest corner past the Clemmons and Bermuda Run side. The high ground is around eleven hundred feet up near Jefferson Church Rd outside King. Four hundred forty feet of fall inside a single county line, and it is why so many crawls here are half buried on one wall and daylighting on the other. You do not get flat building lots out of that terrain for free. You get them by cutting the uphill side and filling the downhill side, and decades later the concrete tells you which half you are standing on.

This page covers how the lifting works, how the material behaves under a Piedmont slab, where the settlement patterns run neighborhood by neighborhood, what the permit and historic review situation genuinely is across four counties, and the part most outfits skip entirely, which is when I will tell you a slab ought to be replaced instead of lifted. I turn work down. It is easier than getting called back.

Common signs

When Winston-Salem homeowners call us for concrete lifting & leveling.

Concrete settles in Forsyth County for three specific reasons that overlap: cut-and-fill pads on the county's 440 feet of relief between the Yadkin's 660-foot low and Jefferson Church Rd's 1,100-foot high; erosion under slabs sitting over the buried Peters Creek and Silas Creek culverts through Ardmore, the West End edge, and the south side; and shrink-swell Cecil clay that moves the same slab twice in one calendar year. The symptoms below are what those three mechanisms produce, and the mechanism decides whether the slab is a lift candidate or a replacement.

Driveway aprons in Sherwood Forest and Peace Haven dropping at the garage end while the street end holds — the classic cut-and-fill signature on a 1950s–70s ranch pad

Front walks in Ardmore near Cloverdale, Miller, and Melrose settling by erosion rather than consolidation because the buried Peters or Silas Creek channel is running under the block

Nineteen-twenties porch slabs on West End and Washington Park bungalows tilting toward the front step because they were poured on graded clay with no stone, then loaded by decades of freeze-thaw at 900+ ft elevation

Terrace and patio panels off Buena Vista and Reynolda estate wings settling in a ring around the house where the 1920s addition sat on fill against the original foundation and undersized slate-roof downspouts concentrated discharge

Waughtown, Sunnyside, and Central Terrace sidewalks pitched back toward the sill because a century of Old Lexington Rd and Sunnyside Ave street and curb work has raised grade above the wood

Bermuda Run and Advance driveway pads in the Yadkin River bend at the Davie–Forsyth line — the lowest ground in the service area — showing active subgrade migration from a real seasonal water table rather than fill consolidation

The stakes

What it actually costs a Winston-Salem home.

A settled slab is almost never only cosmetic, and in this county it is very often the thing feeding a wet crawlspace. Your apron drops an inch and a half at the garage. Grade that used to carry water out toward the street now carries it back toward the house. We take roughly forty-five inches of rain a year here, and it is not spread evenly. May through August is the heavy stretch, which is exactly when dew points sit in the low to mid sixties and a vented crawl is already fighting for its life. That reversed grade loads water against your foundation during the worst months of the year. Water finds the block, runs under the vents, and now somebody is telling you that you need a dehumidifier. Sometimes you do. But if the driveway is aiming every storm at the stem wall, the dehumidifier is running against a faucet nobody turned off. I have walked exteriors on Konnoak Dr and off W Clemmonsville Rd where the actual cause of a soaked crawl was a rear patio that had tilted back toward the house.

There is a second seasonal squeeze here that people outside the Piedmont do not deal with. September and October bring genuine fog events down in the Salem Creek and Muddy Creek bottoms, and those mornings push crawl relative humidity past ninety-five percent under houses that were fine in July. If the exterior concrete is dumping water at the foundation on top of that, you have stacked two loads on the same crawl.

Trip hazards get serious faster than people expect. The commonly cited threshold for vertical displacement between adjacent walk panels is a quarter inch. On a private front walk in Buena Vista or Washington Park nobody sends you a letter, you are just the person standing there when a delivery driver catches a toe. On a storefront block on Sunnyside Ave, along Waughtown St, or in the older commercial frontage on S Main St, that same quarter inch is a documented condition that draws a written correction.

Settlement compounds, and it compounds on a schedule. Once one panel drops, the panels beside it lose the edge bearing that was distributing their load and start cracking at the joints. One bad section becomes three inside a couple of winters. We run roughly seventy-five to a hundred frost days a year in this county, with last frost early April and first frost late October, about six inches of snow, and periodic ice storms on top of that. The snow itself is not the mechanism. The repeated freeze and thaw is, and it is more aggressive at the north end of our service area, up toward Rural Hall and King where the ground climbs toward that eleven hundred foot high point, than it is down on the south side. Each freeze expands water in the upper soil and heaves it, each thaw sets it back down slightly looser, and a subgrade with no compacted stone base under it gets hollowed out over time.

The Cecil shrink-swell cycle stacks on top of all of that. Wet spring, the clay expands and pushes. Dry August, it contracts and drops away. A slab bearing on that clay rides the whole cycle. Most years it comes back close to where it started. Some years it does not, and the difference accumulates.

An out of level pool deck stresses the coping and tears the sealant joint at the pool wall. A compressor more than a few degrees out of level runs outside its lubrication envelope and fails early, and most installers will decline a warranty claim on equipment that failed on a visibly tilted pad. At resale it matters here more than in a lot of markets, because Forsyth County home inspectors flag crawl moisture, efflorescence and fungal growth aggressively, and a sinking apron pointed at the foundation gets written up before the inspector ever opens the hatch.

The last reason, and the one I care most about: a settled slab is information. On a cut and fill pad in Clemmons or Peace Haven it is telling you the fill went in fast during a boom. On a nineteen twenties bungalow porch in Ardmore or Washington Park it is telling you the slab was poured on native clay with no stone. On a block near a buried Peters Creek or Silas Creek culvert it is telling you groundwater is moving through the subgrade and carrying fines with it. On a farmhouse out Gumtree Rd or Sullivantown Rd it may be telling you a septic line under the drive has been leaking for a while. Lifting the concrete without reading the message is how you end up doing the same job twice.

Our process

How we do concrete lifting & leveling in Winston-Salem.

Same steps every job. No shortcuts.

Rotary laser and soil probe assessment

elevations chalked directly on the concrete, then probe at slab edges to find the cut line vs. the fill line; on a typical Clemmons or Peace Haven pad refusal at 2.5 ft on the cut half and easy travel past 5 ft on the fill half tells the whole story

Water walk before material spec

downspout discharge, upstream grade, service-trench crossings, and which sub-basin the lot sheds to (Muddy Creek, Salem Creek, Peters Creek, Silas Creek, or the Belews Creek side of the Kernersville divide); fill consolidation stops when the fill is supported, but active erosion from a buried channel or a failing sanitary lateral does not stop until the water is cut off

Polyurethane injection through 5/8-inch diamond-bit ports

HMI TerraThane 24024 (4-lb) for standard driveway, walk, and patio work; PolyLevel PL-400 with the slower reaction profile where the material has to travel farther under porch and terrace panels before it kicks

Historic parcel check via Forsyth County GIS

Old Salem H, Bethabara H, West End HO, or any of the roughly 146 Local Historic Landmarks scattered across Winston-Salem, Kernersville, Bethania, Rural Hall, Pfafftown, Walkertown, Clemmons, and Lewisville; the lift itself is generally not review-triggering, but regrading front slopes, new drain lines, or retaining wall work is, and West End retaining wall standards specifically call concrete block and dry-stack rock inappropriate in high-visibility locations

GeoCivix permit submission where scope grows past the lift

desk is Winston-Salem/Forsyth County Inspections at 100 E First St for all of Forsyth except inside Kernersville (134 E Mountain St), King (110 W King St, in Stokes County), Bermuda Run/Advance (Davie County), and Wallburg (Davidson County in Lexington)

Finish and cure

color-matched cement caps in every port, expansion and control joints resealed with SikaFlex-1a or Titebond WeatherMaster; poly reaches ~90% compressive in about 15 minutes, so drive-on same day, and the port pattern reads as maintenance rather than alteration on a historic walk

Materials & method

Real specs. Not builder-grade.

Two methods lift concrete and I use both, just not equally. What I run on almost all residential work in Forsyth and the surrounding counties is polyurethane foam lifting, sometimes called polyjacking or just poly. We drill five eighths inch injection ports with a diamond bit, thread the gun into each port, and inject a two component high density expanding polyurethane that reacts underneath the slab. Port spacing runs roughly twelve to eighteen inches on a grid, tightened toward the low corner and around the perimeter where the void is deepest, opened up through the middle where the slab is still bearing on soil. A two car driveway is typically forty to eighty ports. The diamond bit leaves a clean edge with no spalling around the hole, and every port gets a color matched rapid set cap when we finish.

Material for standard driveway, walk and patio work here is HMI TerraThane 24024, a four pound per cubic foot lifting polymer. Closed cell, hydrophobic, chemically inert once cured, and indifferent to soil chemistry, root contact and freeze cycling. For porch slabs and any lift where I need the material to travel farther out under the panel before it kicks, I run PolyLevel PL-400, which has a slower reaction profile. Higher density formulations come out for garage slabs, pool decks, commercial pads, and anywhere the subgrade is saturated, which on this side of the Piedmont means the Yadkin River bottom parcels and the flats along Muddy Creek and South Fork Muddy Creek.

Understanding the expansion behavior is what makes the technique controllable. The two components meet at the gun tip, react exothermically, and expand many times their liquid volume within seconds. But the material takes the path of least resistance, which means it packs open void before it lifts anything at all. The slab does not move until the void is full and the foam has nowhere left to go but up. Then the lift starts, and it starts slowly enough to stop. I keep a laser receiver clamped to the slab edge and work in short pulls, holding about an eighth of an inch across many ports rather than jacking one point hard. On a badly cracked panel with independent free floating pieces you cannot hold that, because every piece wants its own elevation. That is one of the reasons some slabs are not lift candidates, and I will say so on the assessment rather than after.

Cure and return to service is where poly earns its place on a working person's schedule. The polymer reaches roughly ninety percent of compressive strength within about fifteen minutes of injection and carries full vehicle load inside thirty to sixty minutes. Traditional mudjacking pumps a limestone screenings slurry through much larger ports, historically about two inches and sometimes closer to three, and cures over eight to twenty-four hours with the slab off limits that entire window. Mudjacking is not obsolete and I will not pretend it is. It still makes sense on large interior warehouse and shop slabs where appearance does not matter and the void volume is enormous. Where it falls down on a Forsyth County residential job is weight, ports and durability. The slurry is heavy, and you are placing that weight on the same clay or fill that already failed once. A two inch hole is a dinner plate on a driveway and stays visible no matter how carefully it is patched, which rules it out entirely on a historic walk. And slurry can consolidate under years of vehicle loading, letting the slab creep back down.

Void filling is a separate discipline and I quote it as its own line. Some slabs do not need to come up at all. They read dead level on the laser, which is exactly why they get missed on a walkthrough, and the only tells are the sound underfoot and a panel that deflects under a car until it finally splits. On those we inject a slower, lower density polymer with no lift target, just enough back pressure to confirm the void is packed and the slab is bearing again. On that Clemmons and east Kernersville subdivision stock, quoting a lift is the mistake, since raising a floor already at grade only opens a gap at the door. Deep injection is the third tool, small diameter probes driven several feet down with structural polymer placed from the bottom up to densify a whole loose fill wedge rather than just the top few inches. That is the right answer on the steeper cut and fill pads where the fill wedge is deep on the downhill side and a shallow lift keeps coming back.

Finish work is color matched caps on every port, then expansion and control joints resealed with SikaFlex-1a, or Titebond WeatherMaster where the geometry suits it. One scheduling note that matters more here than people expect: polyurethane lift material does not sit on a local shelf the way plumbing fittings do at Ferguson on N Point Blvd or HVAC parts do at Johnstone Supply. It ships in from a Triad distributor or direct, so I build a day or two of lead time into scheduling rather than promising a same week start on material that is on a truck.

One more spec issue that is genuinely local. In Old Salem and in the West End Historic Overlay District, the visual result of a port pattern is a design standards conversation, not just a preference. Everything from the rear building line forward to the right of way is presumed high visibility in those standards. A poly port pattern in a front walk is a small, patchable, reversible intervention and generally reads as maintenance. A slurry pattern of two to three inch holes across the front walk of a house on Summit St or S Church St does not, and I will not put you in that position.

What I will not lift, plainly stated. Concrete broken into free floating pieces rises as separate pieces and opens the cracks wider. Slabs with severe surface spalling keep failing at the surface no matter how good the support underneath becomes. Slabs actively being heaved by a growing root will re-heave, so the root gets handled first or the lift is temporary and I tell you that up front. And slabs sitting over subgrade that is still actively eroding, whether from a leaking service line, a downspout discharging under the concrete, a failing sanitary lateral of the kind that runs under the older Sunnyside and Waughtown streets, or groundwater cutting through fill on a slope, should not be lifted until the water is dealt with. The erosion keeps taking material out from under the new support, and all you have done is buy time you paid for.

Forsyth County

Code, permits, and the Winston-Salem context.

Start with the permit question, because in this market it gets answered wrong constantly and the answer is genuinely simple.

A residential slab lift on private property generally does not require a building permit. We are not adding structure, we are not adding load, we are not changing the footprint of anything. We are returning an existing slab to the elevation it was poured at, which is not work the building code regulates. That is the honest answer and I am not going to dress it up to make the job sound more involved.

What does matter is knowing who has jurisdiction the moment a permit does enter the picture, and around Winston-Salem that is a four county question. Say the assessment turns up a section needing full replacement, or the scope grows into a new drain line, or work runs into the public right of way. Here is the map.

The Winston-Salem and Forsyth County Inspections Division is a consolidated city and county agency working out of the Bryce A. Stuart Municipal Building at 100 E First St. It handles building permits and inspections throughout Forsyth County, including inside the City of Winston-Salem, with three exceptions: the town or city limits of Kernersville, King and High Point. Single family plan review runs through GeoCivix and the contact is the inspections line or askinspect@cityofws.org. Village of Clemmons, Town of Lewisville, Town of Walkertown, Town of Rural Hall, Village of Tobaccoville and Town of Bethania all handle zoning locally, but their building permits and inspections still run through that same office. People in Clemmons and Lewisville call looking for a village building permit desk that does not exist.

The Town of Kernersville Development Services runs its own permit desk at 134 E Mountain St with its own online portal. Do not file work inside Kernersville town limits through the county. A Kernersville mailing address on a parcel outside town limits falls back to Winston-Salem and Forsyth County, so out there I confirm the parcel rather than the mail. The City of King Planning and Inspections department at 110 W King St covers work inside King city limits, and anything outside those limits, toward Germanton and the rural Stokes parcels, goes through Stokes County. Davie County has its own desk covering Bermuda Run, Advance and Mocksville. Davidson County runs its desk out of Lexington covering Wallburg and Midway. Yadkin County handles the far western fringe around Yadkinville and East Bend. None of those file through Forsyth, and a contractor who tells you otherwise has not worked out there.

Septic is the other permit adjacent issue. Rural Forsyth, and most of Stokes, Davie, Davidson and Yadkin, is on septic. If a lift job grows into drainage or discharge work, that discharge gets routed away from the drainfield and away from the repair area, always, and county environmental health becomes part of the conversation.

Historic review is the constraint that is genuinely specific to Winston-Salem, and this is where most contractors either scare people needlessly or miss a real obligation entirely.

Forsyth County has exactly three locally zoned historic districts, and only these carry binding review: Old Salem Historic District, Bethabara Historic District, and the West End Historic Overlay District. Review is by the Forsyth County Historic Resources Commission, staffed by the City-County Planning Division. The commission meets the first Wednesday of the month at four in the afternoon on the fifth floor of the Bryce A. Stuart Building at 100 E First St, and there is generally no July meeting, which is worth knowing before you plan a summer job. Applications go through GeoCivix, and staff contact is preservation@cityofws.org.

The trigger is any work other than routine maintenance on a property in one of those districts, or on a designated Historic Sign, or on a Local Historic Landmark. Routine maintenance, meaning repairs that do not change the exterior, needs nothing. Minor Work is staff issued, and staff can approve it but cannot deny it. Major Work goes to the full commission at a public hearing, and so does every after the fact application, which staff cannot approve at all. A Certificate of Appropriateness expires in three years and a denial is appealable within thirty days.

Local Historic Landmarks matter far outside the three districts. There are roughly one hundred forty-six designated landmarks scattered across Forsyth County, in Winston-Salem, Kernersville, Bethania, Rural Hall, Pfafftown, Walkertown, Clemmons and Lewisville. If a house is a designated landmark the obligation follows it regardless of where it sits, and it covers the interior too if the interior was part of the designation. So no, a rural Forsyth address is not automatically unregulated, and I check.

Where does that land on a slab lift? Raising an existing walk, porch slab or driveway back to the elevation it was poured at is restoration of an existing condition, not an exterior alteration. When we finish there is no visible change, which is the entire point of the job. What triggers the COA question is scope that grows past the lift: regrading a front slope, cutting a new exterior drain line, rerouting a downspout across a front yard, replacing a historic walk with different material, or building a retaining wall. That last one bites hardest. The West End retaining wall standards call concrete block, modern landscaping block and dry stack rock inappropriate in areas of high visibility, and high visibility is presumed to run from the rear building line forward to the public right of way. The rear yard is never high visibility, and that is your escape hatch on almost every job.

Now the part nobody else will tell you: National Register listing places no restriction on a private owner using private money. Ardmore, Washington Park, Sunnyside and Central Terrace, Waughtown and Belview, Reynolda, West Highlands and the Kernersville South Main Street district are National Register only. No Certificate of Appropriateness, no design review, no commission hearing. Your neighbor may tell you otherwise. Your neighbor is wrong, and I would rather you hear it from me before you cancel a job you did not need to cancel.

Now the ground itself. Cecil, Pacolet and Madison soil series dominate this county, all of them sandy loam surface over deep red clay subsoil over saprolite, which here is weathered mica schist and gneiss. Pacolet typically runs to saprolite by about thirty-three inches, which is why my probe hits refusal at under three feet on one lot and drops easily for six on the lot next door. On the cut side of a graded pad you are frequently on saprolite or close to it, and that ground does not move. On the fill side you are on whatever the grader pushed there, and that ground moves for decades.

Water is the accelerant, and the water story in Forsyth is unusual. Roughly seventy-six percent of the county drains to the Yadkin and Pee Dee system by way of Muddy Creek, the largest local Yadkin tributary, through four sub-basins: Salem Creek, South Fork Muddy Creek, Peters Creek and Silas Creek. All four are parkway names now, which tells you how much of that drainage got culverted and paved during twentieth century road building. Homes over or beside those buried channels through Ardmore, West End and the south side hold a stubborn perched water table that no amount of gutter work fixes, and slabs on that ground erode from underneath rather than simply consolidating. The northeast quadrant drains the other way entirely: Belews Creek rises in east Forsyth, feeds Belews Lake, and runs to the Dan River and the Roanoke basin. The divide between the two systems runs right through Kernersville. Salem Lake and the Yadkin River are the city's drinking water sources, and the Yadkin bottom on the southwest corner, around Clemmons and toward Bermuda Run, is the lowest ground and the wettest subgrade in the service area.

Winston-Salem neighborhoods

Where we work — neighborhood by neighborhood.

After enough years under and around houses in this county you can predict most of a job from the address, because Winston-Salem has something almost no city its size has: clearly dated, clearly bounded housing eras stacked inside one county line. Get the decade right and the foundation tells you the rest. Here is how the settlement patterns actually run.

Old Salem is the oldest occupied residential foundation stock in the county and a category of its own. The Moravian congregation town was founded in 1766, and along S Main St, S Church St, Salt St, W Academy St and Blum St you have hand made soft brick and hand laid fieldstone set in lime mortar, half timber, vaulted brick cellars and shallow dirt crawls under later frame additions. There is often no footing you would recognize as a footing. Concrete work here is walks, entry aprons and later poured additions, all of it inside a locally zoned Historic District where non routine exterior work requires a Certificate of Appropriateness before it starts. No mandatory HOA, but the design standards are the real governing document. On a lift here the port pattern and patching plan get discussed before we schedule, and I will not put a slurry port pattern in a historic walk.

West End is my most technically interesting corridor and my most constrained. Planned in 1890 and built out between 1887 and 1930, five hundred and eight contributing buildings of Queen Anne, Classical Revival and Craftsman along Summit St, W Fourth St, W Fifth St, N Broad St, Glade St, West End Blvd, Holly Ave and Brookstown Ave. These houses sit in terraced hillsides with granite retaining walls and granite steps tied directly into the foundations, which means a settled walk or terrace panel is frequently bearing on the same wall system holding the hillside up. The lift is never an isolated event. The neighborhood association is voluntary, but the Historic Overlay District carries binding review, and the 2020 standards constrain regrading and retaining wall material in the front and side yards while leaving the rear yard open. Peters Creek runs the greenway corridor along the edge, culverted for much of its length, and the low blocks feel it.

Ardmore is my highest volume neighborhood for walk and porch slab work and it is not close. Winston-Salem's first automobile suburb, first three houses on what is now Hawthorne Rd in 1914, grown out of the Crafton Heights farmland bought in 1910 and 1912, and now more than twenty-two hundred properties in the National Register district with something like four thousand homes in greater Ardmore. Craftsman bungalows on brick pier with partial block infill along S Hawthorne Rd, Cloverdale Ave, Miller St, Queen St, Elizabeth Ave, Ardsley St, Irving St, Lockland Ave and Melrose St. Those front porch slabs were poured on graded clay with no stone, decades in some cases after the house went up, and a century later they lean away from the front step. Mature oaks lift walk panels and plug foundation vents in the same autumn. And the whole neighborhood sits on the divide between Peters Creek and Silas Creek, both culverted into parkways, so the blocks nearest those buried channels carry a perched water table and settle by erosion rather than consolidation. The Ardmore Neighborhood Association is voluntary and Ardmore is a National Register district only, which means there is no Certificate of Appropriateness requirement here at all. I tell people that in the driveway.

Buena Vista was platted in 1915 and settled first by the Reynolds, Gray and Hanes families, and the estate era stock along Knollwood St, Country Club Rd, Buena Vista Rd, Westview Dr, Bitting Rd and Buckingham Rd behaves differently from anything else in the city. Slate and tile roofs feed original downspout runs that were undersized the day they went in, and that concentrated discharge lands on walks, terraces and driveways that then settle in a predictable ring around the house. Hand cut stone and deep brick foundations, partial basements under the main block, tall crawls under wings and sunrooms. The crawl under a nineteen twenties wing is usually the wet one because the wing was built on fill placed against the original foundation, and the terrace slab over that same fill is usually the panel that dropped. Voluntary neighborhood association, and portions fall inside the National Register Reynolda district, which carries no COA obligation.

Reynolda runs from the 1917 Katharine Smith Reynolds estate out through the streets that grew around it along Reynolda Rd, Wake Forest Rd, Englewood Dr, Marguerite Dr, Thornfield Rd and Audubon Dr. Estate era masonry with deep original footings on one hand, nineteen fifties through seventies faculty ranches and split levels on block perimeter on the other, sometimes within a block of each other. Silas Creek runs the eastern edge and the low lying streets off it stay wet into spring, so settlement there deserves a hard look at whether water is moving through the subgrade. Mature canopy off the original landscape plan drops enough debris to bury a foundation vent in one season, and heavy shade means the ground under a slab never dries by solar gain the way it does on a full sun lot. National Register only, no COA.

Washington Park was platted by Jacob Lott Ludlow in 1891 and built out mostly after 1900 on the steep ridge crest above Salem Creek. Three hundred forty-eight contributing buildings, bungalows, Queen Anne cottages and Colonial Revival along S Main St, Park Blvd, Cascade Ave, Acadia Ave, Banner Ave, Hollyrood St, Devonshire St and Vargrave St. The ridge topography is the whole story here. One side of the house has a twelve to sixteen inch crawl buried against clay and the other side has a forty inch crawl with a stone knee wall, and the exterior concrete follows the same logic: the uphill walk sits on native ground and stays put, and the downhill terrace or drive sits on fill and drops. Brick pier with no continuous perimeter is common on the older blocks, and many of these have been jacked and sistered repeatedly by prior owners. National Register only, no COA, voluntary neighborhood association.

Sunnyside and Central Terrace is four hundred twenty-five contributing buildings in a grid around Sunnyside Ave, mixing factory buildings, worker housing and middle income blocks from the late eighteen hundreds through the mid twentieth century, along Goldfloss St, Brookline St, Monmouth St, Old Lexington Rd and E Clemmonsville Rd. Small footprint houses, brick pier with no continuous perimeter, generations of owner added repairs. The specific thing to know is that the sanitary and storm lines under these streets are ancient, and a failing lateral under a walk or drive reads exactly like a groundwater problem until somebody puts a camera in it. Grade has been changed repeatedly by sidewalk and street work, so the dirt is often above the sill and the exterior slabs pitch the wrong way as a result. Listed on the National Register in 2008, no local review, no mandatory HOA.

Waughtown grew from Charles Bagge's 1806 store, took its name from James Waugh, and exploded after the Roanoke and Southern Railroad reached it in 1892 and the streetcar arrived in 1901, all around John Phillip Nissen's wagon works. Mill village housing on brick pier and stacked stone along Waughtown St, E Sprague St, Marble St, Harding St, Rockford St and Salem Lake Rd. The east end toward Salem Creek and Salem Lake sits low with a genuinely high water table, and slabs on that ground do not settle politely, they wash. These are multi generation families who know exactly what has been tried on their house before, so I give them the straight read and do not pad the scope. National Register only, no COA.

Konnoak Hills is the woodsy south side, platted early in the twentieth century and filled in heavily after the war, along W Clemmonsville Rd, Konnoak Dr, Old Salisbury Rd, Southpark Blvd and Brewer Rd. Two totally different foundation systems sit within two hundred feet of each other here, Craftsman cottages on brick pier next door to nineteen forties through sixties brick veneer ranch on block. Peters Creek runs the eastern boundary, and the sloped lots off Clemmonsville shed straight toward the back foundation wall, which is why rear patios here are my most common tilt back toward the house call. Voluntary association, no historic review.

Sherwood Forest is the postwar ranch belt between Robinhood Rd and Peace Haven Rd, streets named Kirklees, Doncaster, Barnesdale, Yorkshire, Huntingdon and Lichfield. Wide lots, generous brickwork, long low footprints. The concrete pattern is consistent: sixty year old builder grading has flattened out and now slopes back toward the house on a lot of these, driveways are long enough to cross both cut and fill, and aprons drop at the garage end while the street end stays put. Silas Creek runs the eastern boundary and lots backing to the greenway hold water every spring. Voluntary association only.

Peace Haven and Robinhood West spans three decades of buildout, so the foundation depends entirely on the year the street was cut. Sixties and seventies ranch on block along Peace Haven Rd and Robinhood Rd, eighties split levels with a stepped crawl, nineties two stories off Shattalon Dr, Buttonwood Dr, Forest Grove Dr and Cross Gate Rd. This quadrant drains to Muddy Creek and South Fork Muddy Creek, and the flat bottoms between the ridges stay saturated well into the year. The HOA picture is genuinely mixed: the older Robinhood and Peace Haven frontage has no association at all, while several eighties through two thousands cul-de-sac subdivisions require notification for exterior modifications, so I confirm per address. Septic is still in service on parts of the Yadkinville Rd and Shattalon frontage.

Clemmons, founded in 1802 by Peter Clemmons and incorporated in 1986, is now twelve or so square miles of subdivision along the interstate. Almost everything is eighties through twenty-tens block perimeter on Lewisville-Clemmons Rd, Kinnamon Rd, S Peace Haven Rd, Harper Rd and Village Point Dr, in associations like Waterford, Village Grove, Meadowbrook, Westridge at Tanglewood, Clemmons West and Fair Oaks. Driveway and garage slab settlement dominates and it is textbook cut and fill: aprons dropping at the garage end, road end untouched. The Yadkin River bottom and the Muddy Creek flats on the south and west sides sit genuinely low with a real seasonal water table, which changes the material spec and sometimes changes whether we lift at all. Permits run through Winston-Salem and Forsyth County Inspections, not a village office.

Lewisville sits on Moravian settlement territory along the Great Wagon Road at the Shallow Ford of the Yadkin, incorporated 1991, and the housing splits hard. Pre-1960 farmhouses on stacked stone with no continuous perimeter on large parcels along Shallowford Rd, Williams Rd and Lewisville-Vienna Rd, and nineties through twenty-tens subdivision homes on block off Brookfield Dr and Heritage Dr. Lasley Forest is a real association; most of the older acreage has no mandatory HOA and covenants exist only in the newer platted subdivisions. Western Lewisville drops toward the Yadkin bottom, and river adjacent parcels carry seasonal high water that shows in the concrete first. Septic on the older acreage controls where a discharge can go.

Kernersville holds three building eras in one town. The South Main Street National Register district has fifty-four principal buildings including thirty houses from the eighteen thirties to 1930, twenty-one predating 1900, on soft brick and stone with low crawls. Then seventies through nineties ranch on block, then heavy two thousands through twenty-twenties growth on the east and south sides in Copperfield, Oakmont, Colony Park, Somerset, Avondale Estates, Wynnfield and Whispering Brooks Estates, along S Main St, E Mountain St, W Bodenhamer St and Old Winston Rd near Korner's Folly. Two things matter here that matter nowhere else. Its Development Services Division on E Mountain St is its own permitting authority, so a job here that outgrows a lift draws a different inspector and calendar than one two miles west. And the town sits astride the drainage divide, Belews Creek running northeast to the Dan River and the Abbotts Creek and Muddy Creek systems running southwest to the Yadkin. Which side your lot is on changes how the subgrade behaves.

Walkertown incorporated in 1984 but most of its housing predates the town. Rural frame on brick pier and stacked stone along Old Hollow Rd, Main St, Sullivantown Rd and Belews Creek Rd, plus newer block subdivisions off Old Hollow and Reidsville Rd, some with associations and much of the older stock with none. This is the quadrant where drainage flips: Belews Creek rises here and runs to the Dan River rather than the Yadkin, so local low points behave differently than the Muddy Creek side. Septic outside the town core, permits still through Winston-Salem and Forsyth County Inspections.

Rural Hall is the northern rail town, with depot district housing on brick pier and stone along Broad St, Bethania St, Depot St and Church St, and farmhouse stock on stacked stone out along Bethania-Rural Hall Rd and Rural Hall-Germanton Rd. Repeated grade changes from street and sidewalk work have left a lot of the older exterior concrete pitched toward the houses. This is the higher elevation end of the county heading toward that eleven hundred foot high point near King, and freeze cycling on shallow bearing is more aggressive here, which shows up as porch slab and step settlement more than driveway settlement. Several designated Local Historic Landmarks sit in Rural Hall, and non routine exterior work on those specific properties needs a COA even though the town has no historic district.

Pfafftown, named for Peter Pfaff, was never incorporated and has been partially annexed by both Winston-Salem and Lewisville, so jurisdiction has to be answered by parcel rather than by mailing address. Housing runs from pre-1950 farmhouse on stacked stone along Old Pfafftown Rd, Transou Rd and Yadkinville Rd, through seventies ranch on block, to two thousands two stories off Shattalon Dr and Greenbrier Farm Rd. Muddy Creek and South Fork Muddy Creek drain the whole quadrant and the bottomland between the ridges holds water into June. Septic on the older acreage, and designated Local Historic Landmarks scattered through here carry a COA obligation independent of any district.

Coverage

Concrete Lifting & Leveling in every Winston-Salem zip code.

We inspect and service the full Winston-Salem metro. Not sure your zip is covered? Call (336) 221-7061 — the answer is almost always yes.

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Beyond Winston-Salem

Adjacent towns we serve out of the Winston-Salem shop.

The rig is trailer mounted and the polymer travels, so my service area is a drive time question rather than an equipment question. What changes as you move out from downtown Winston-Salem is the permit desk and the water, and both of those change fast around here.

Inside Forsyth County. Ardmore, West End, Buena Vista, Washington Park and Sunnyside are all within about ten minutes of Old Salem. Konnoak Hills and Waughtown ten to fifteen on the south and east side. Sherwood Forest, Reynolda and Peace Haven ten to fifteen northwest. Clemmons and Lewisville fifteen to twenty southwest along the Lewisville-Clemmons corridor. Pfafftown and Rural Hall fifteen to twenty north, Tobaccoville and Bethania a little past them. Walkertown fifteen northeast. Kernersville twenty east. Belews Creek out past Walkertown on the Dan River side of the divide. All of that files through Winston-Salem and Forsyth County Inspections at 100 E First St except inside Kernersville town limits, which has its own desk at 134 E Mountain St.

Stokes County, north. King is about twenty-five minutes up the old highway corridor and it is the highest ground we cover. The Forsyth high point of roughly eleven hundred feet sits just off Jefferson Church Rd on the King outskirts with the Sauratown foothills beyond, and freeze cycling on shallow bearing is more aggressive there than anywhere on the Winston-Salem side. Rural Stokes farmhouses sit on rubble stone and hand laid brick pier with no perimeter, and pier and porch slab settlement from repeated freeze cycles is the number one call out there. King is where that split bites hardest, because the city desk and the county desk keep separate review calendars and picking the wrong one on a Friday can cost you a week. Germanton and Danbury are further out on the same run, both Stokes County.

Davie County, southwest. Bermuda Run and Advance are about twenty-five minutes out along the river corridor, and this is the lowest ground in the service area. The town sits in the Yadkin River bend right at the Davie and Forsyth line, which means a genuine seasonal high water table rather than just a humidity problem. Built on the 1920s Ariston Farm, developed from 1970 as one of North Carolina's first golf course neighborhoods, incorporated 1999, Kinderton Village annexed 2012. Seventies and eighties club stock on block perimeter; Kinderton Village and the newer builds on taller crawls. Association review is real here in a way it is not almost anywhere else we work, at Bermuda Run Country Club, Kinderton Village, Bermuda Village and Riverbend, so exterior equipment placement and discharge routing needs approval before installation. Permits go through Davie County, not Forsyth. Mocksville is further southwest on the same desk.

Davidson County, south and southeast. Wallburg is about twenty-five minutes out, incorporated 2004, straddling the ridge between Winston-Salem's south side and Davidson County farmland at the Abbotts Creek headwaters. Older stock along Thomasville Rd, Gumtree Rd, Willard Rd and Motsinger Rd is farmhouse on stacked fieldstone and brick pier with no continuous perimeter, while newer platted subdivisions like Wallburg Landing are nineties through twenty-tens block. Nearly everything out here is on septic, so discharge routing has to be planned around the drainfield before anybody trenches. Davidson County runs its own permit desk out of Lexington and Forsyth has no jurisdiction there. Midway sits between Wallburg and Lexington on the same desk.

Guilford and Yadkin edges. Stokesdale sits northeast past Kernersville on the Guilford side, and High Point is southeast, both outside Winston-Salem and Forsyth inspections territory. Greensboro and High Point are also where the next closest supply house branches sit when the Winston-Salem counters do not stock something. Westward, Yadkinville and East Bend are Yadkin County with their own desk, and the parcels closest to the river behave like the Clemmons and Bermuda Run bottomland rather than like the ridges.

Across all of it, the two questions I answer before I write scope are the same: which county has jurisdiction if this job grows past a lift, and which side of the drainage divide is this lot on. Everything southwest of Kernersville is heading for Muddy Creek and the Yadkin. Everything northeast of it is heading for Belews Creek and the Dan. That determines whether I am looking at fill consolidation or water moving through subgrade, and those two conditions need different work.

Clemmons, NCLewisville, NCKernersville, NCWalkertown, NCRural Hall, NCPfafftown, NCKing, NCBermuda Run & Advance, NCWallburg, NCWashington Park, NCWaughtown, NCWest End, NCDowntown Winston-Salem, NCOld Salem, NCArdmore, NCBuena Vista, NCKonnoak Hills, NCReynolda, NCSherwood Forest, NCPeace Haven, NC
How we quote

Free on-site inspection, fixed written price.

Every job starts with a free on site assessment, and it is an actual assessment rather than a sales call with a clipboard. I show up with a rotary laser and receiver, a hammer, a soil probe and a tape. I shoot elevations across every panel and mark the drop right on the concrete in chalk so you can stand there and see which panel moved and how far. The panel you thought was the problem is frequently not the one that moved. On a stepped hillside lot in West End or Washington Park, where the walk is a series of terraces tied into granite steps and retaining walls, that laser work is most of the diagnosis by itself.

Then I tap the slab and listen. Solid concrete over bearing soil sounds solid. Concrete bridging a void sounds hollow, and the tone gives you a rough sense of how much air is under it. After that I probe the subgrade at the slab edges, checking how far the probe goes before refusal and whether it goes the same distance on both sides. On a cut and fill lot, and most of this county is cut and fill lots, that single test finds the fill line and explains why the settlement stopped where it did.

Then I walk the water, which is the step people skip and the step that decides whether the repair lasts. Downspout discharge and where it actually terminates rather than where it was designed to. Irrigation heads. Grade upstream of the slab. Any place a service trench crosses under the concrete. Whether the lot sheds toward Peters Creek, Silas Creek, Salem Creek, Muddy Creek or South Fork Muddy Creek, or whether we are on the Belews Creek side of the divide out toward Walkertown and Kernersville. If the slab is on a slope draining toward any of that, I need to know whether we are looking at consolidation of fill, which stops once the fill is supported, or active erosion, which does not stop until the water is cut off. Those two conditions look identical from the surface and need different scopes.

On a rural parcel out Sullivantown Rd, Gumtree Rd, Yadkinville Rd or the Stokes side of King, I locate the well and the septic drainfield before I write anything, because those locations constrain where a discharge could legally go if the job needs one. In Old Salem, Bethabara or West End, or on any parcel I have reason to think is a designated landmark, I ask the historic question before I quote rather than after, because it changes what the drainage half of the job is allowed to look like.

Last, the disqualifiers. Free floating pieces. Severe surface spalling. Root heave. Structural cracking that means the panel will not come up as a unit. If the slab is a replacement candidate rather than a lift candidate, I say so on the spot with the laser numbers in front of you rather than lifting it and hoping.

What you get afterward is a written fixed quote before anything is scheduled, broken out by panel or area with a lift target on each line. What you sign is what you pay. If we hit a condition mid job that could not have been seen from the surface, I stop, come find you, show you what we found, and we agree in writing before another pound of material goes in the ground. And a lot of this market works hospital shifts, plant shifts and university schedules that do not hand out random Tuesdays. Tell me your schedule and I will work to it, and I will give you an arrival window and hit it.

More services

Everything else we do under Winston-Salem houses.

01

Crawlspace Encapsulation

Seal out ground moisture for good.

Read
02

Crawlspace Repair

Whatever's wrong under your house — standing water, wood rot, sagging floors, fallen insulation, mold — we diagnose it on the spot and hand you a fixed-price plan the same day.

Read
03

Vapor Barrier Installation

Not a builder-grade 6-mil sheet held down with rocks.

Read
04

Crawlspace Sump Pump

If your crawlspace floods every hard rain, a vapor barrier alone won't save you.

Read
05

Crawlspace Dehumidifier

The last piece of a proper encapsulated crawlspace.

Read
06

Crawlspace Mold Remediation

Mold on the joists isn't a cosmetic problem — it's a moisture problem.

Read
07

Structural Support & Floor Jacks

If your floors sag, bounce, or slope, the fix isn't a new floor — it's what's holding it up.

Read
Questions

Concrete Lifting & Leveling in Winston-Salem — answered.

I am in the West End HO district. Does polyurethane injection through my front walk trigger a Certificate of Appropriateness?

The injection itself is subsurface and small-hole, but the visible surface work sits under West End Retaining Wall and Site Standards, and the front walk is by definition high-visibility ground — everything from the rear building line forward to the public right-of-way is presumed high visibility under the 2020 standards. Concrete block, modern landscaping block, and dry-stack rock are inappropriate in areas of high visibility, and any regrading or drainage work that alters the front yard falls in the same bucket. Straight void-fill lift with matched patching at the injection ports and no grading change is generally staff-issued Minor Work through GeoCivix. If the lift is going to expose or replace a stone or granite retaining feature, that goes to the full HRC at the first-Wednesday hearing. Email preservation@cityofws.org before I mobilize on any West End address.

My driveway is in Old Salem and it has sunk about an inch at the apron. Same rules as West End?

Old Salem is one of the three locally zoned Historic Districts in Forsyth County — the other two are Bethabara and the West End HO — so yes, the binding COA path is the same. Old Salem standards say not to apply waterproofing or water-repellent coatings to masonry except to solve a specific identified problem, and not to apply paint, cement coating, stucco, artificial stone, or brick veneer to walls, foundations, and chimneys that were not covered historically. On a concrete-lifting job that means matched finish at the port patches and no coating on any adjacent brick pier or half-timber sill that gets touched during the lift. Structural and Mechanical Systems Standard 1 keeps any exposed exterior lines to the rear and screened, which is not usually a driveway issue but becomes one if the drainage change routes a downspout across a visible elevation.

Why does only the middle third of my driveway drop and the rest stay level?

You are almost certainly on Cecil or Pacolet clay with the classic sandy loam A over deep red clay B over saprolite profile — Pacolet turns to saprolite by about 33 inches. Cecil is the North Carolina state soil and it is a shrink-swell clay: it expands wet, contracts dry, and pulls away from anything sitting on it. A wet spring into a dry August moves the fill layer under the driveway twice in one year, and the section that sinks is the one that was placed over the deepest fill or the least-compacted subgrade at pour day. The concrete itself is fine — the void underneath is not. Void-fill lift with HMI TerraThane 24024 or PolyLevel PL-400 injects the polymer through 5/8-inch ports, expands into the void, and takes the slab back to grade in an afternoon.

I am off Ardmore's Cloverdale Ave near where Peters Creek used to run. Is the buried culvert why my walk keeps sinking?

Yes, almost certainly. Peters Creek and Silas Creek were culverted and paved over during 20th-century parkway construction, and the culverts run under Peters Creek Parkway, Silas Creek Parkway, and long stretches under Ardmore, the West End edge, and the south side. Homes sitting over or beside them see a stubborn perched water table that no gutter work resolves, and the seasonal cycle of that water table pumps fines out of the fill layer under any slab within reach. The lift itself is the easy part — TerraThane through 5/8-inch ports, back to grade in an afternoon. The harder question is whether I recommend an interior perimeter drain to a sealed sump under the adjacent crawlspace at the same time, because otherwise the slab drops again in three to five years.

How does the freeze cycle at 900-1000 feet actually affect a slab lift here?

Winston-Salem sits roughly 900 to 1,000 feet above sea level with about 440 feet of relief across Forsyth County to the Yadkin River at 660 feet. That elevation delivers 75 to 100 frost days a year, last frost early April, first frost late October, plus 6 inches of snow and periodic ice storms. NC Residential Code minimum footing depth is 12 inches below finished grade, and on any new pier work I go deeper than the minimum because the freeze-thaw count on this side of the Piedmont is higher than the Sandhills or the coast. On a lift, the cure window for polyurethane is minutes rather than days, so freeze is not the injection concern — the concern is water in the void freezing before the polymer displaces it, which shows up on driveways that are lifted after a wet week without a warm afternoon.

My address is Bermuda Run. Which county issues the permit?

Davie County. Bermuda Run sits in the Yadkin River bend at the Davie-Forsyth line and it is the lowest ground in the service area, roughly 660 feet, with a genuine seasonal high water table rather than just a humidity problem. The town incorporated in 1999 and annexed Kinderton Village in 2012, but the permit desk is Davie County — not Forsyth — and any concrete-lifting or drainage change that requires a permit gets filed in Mocksville. On the original 1970s to 1980s golf-club stock the slabs sit on block foundations with long-failed builder poly, and on Kinderton Village and the 2000s to 2020s builds the crawls are 36 to 42 inches with partial encapsulations that failed at year 5 to 10. Association review at Bermuda Run Country Club, Kinderton Village, Bermuda Village, and Riverbend is real, so exterior grading and any discharge routing goes past the HOA before mobilization.

My house is in Konnoak Hills or Sherwood Forest. Post-war ranch. Do I need a permit to lift a sidewalk?

For a straight polyurethane void-fill lift on an existing private walk or driveway on grade, generally no permit is required through Winston-Salem/Forsyth County Inspections. This is not new construction and it does not alter the footing or the drainage plane. If the lift is coupled with new drainage — a French drain, a buried downspout run, or a regraded swale — that additional work can trip the permit depending on discharge point and proximity to a right-of-way, so I ask askinspect@cityofws.org before I quote a combined scope. Sherwood Forest opened in the 1950s to 1960s with the Robin Hood-themed street names, and Konnoak Hills mixes early-century cottages with 1940s to 1960s ranch and Cape Cod. Both eras sit on brick veneer over block with 18 to 26 inches of crawl, and slabs on those lots typically drop where the driveway meets an original brick retaining edge.

My garage slab has pulled away from the foundation wall in Buena Vista. Is that a lifting problem?

Sometimes yes and sometimes it is the foundation moving, not the slab. Buena Vista was platted in 1915 as the estate era took hold, with Reynolds, Gray, and Hanes families in first, and the housing here runs Georgian, Tudor, and Italian Renaissance with partial basements under the main block and tall crawls under wings and sunrooms. On these houses the garage was often an addition, poured against the original foundation with no positive tie, and the two structures settle differently. Before I lift the slab I want to know whether the foundation itself moved — a rotary laser across the sill and a probe of the fill layer under the slab tells me which side of the gap is actually low. If the wall is stable, TerraThane through 5/8-inch ports closes the gap and re-seats the slab; if the wall dropped, that becomes a Grip-Tite or SmartJack conversation first.

How long before I can drive on it, and will the injection holes show?

Drive on it the same day — polyurethane reaches 90 percent of its final strength within 15 minutes of injection and cures fully within an hour, which is why lifting displaces mudjacking on almost every driveway I quote. The 5/8-inch ports are patched with a matched color-integral mortar or a tinted concrete patch that cures flush. On an aged brushed-broom or exposed-aggregate walk the patch reads as a slightly cleaner disk for the first few weeks and blends within a season; on a decorative stamped surface I plan port locations along the joint lines to minimize the read. If the property is inside Old Salem, Bethabara, or the West End HO, the patch material and finish are cleared with the HRC on the Minor Work application before mobilization, because a portland-rich patch on soft historic surrounds trips both the standards and physics.

When is polyurethane lifting the wrong call and replacement the right one?

When the slab is cracked into more than four pieces, when the differential settlement between adjacent panels is more than two inches, when the concrete is spalled through to the aggregate across more than about a quarter of the surface, or when the subgrade is organic or actively saturated — polyurethane fills voids, it does not consolidate mud. On the pre-1950 Waughtown, Rural Hall, and Pfafftown stock I occasionally find a driveway poured directly over what turned out to be an old fill from a demolished outbuilding, and no amount of lifting stabilizes that indefinitely. In Old Salem or Bethabara the decision has an extra input — replacement is Major Work at the full HRC, and matched-in-kind finish and jointing are conditions of approval. When lifting is right I say so and when it is not I say that, and the written quote reflects the recommendation either way.

Do I need a permit to lift a driveway or sidewalk inside Forsyth County?

Generally no. A residential slab lift on private property does not touch load path, occupancy, or footprint, and the NC Residential Code does not regulate it. What changes the answer is scope creep — a panel that turns out to be a replacement, a new drain line, or work crossing into the right of way. Then the desk depends on jurisdiction: Winston-Salem/Forsyth County Inspections at the Bryce A. Stuart Municipal Building, 100 E First St, covers the whole county including Clemmons, Lewisville, Walkertown, Rural Hall, Tobaccoville, Bethania, and Pfafftown — with three carve-outs. Kernersville has its own Development Services Division at 134 E Mountain St. King runs its own Planning and Inspections at 110 W King St and is in Stokes County. Bermuda Run and Advance are Davie County; Wallburg is Davidson County out of Lexington.

Why does only part of my driveway sink and the rest hold flat?

That is the single most common pattern in this county and it comes straight out of the terrain. Winston-Salem sits at 900 to 1,000 feet, Forsyth's low point is around 660 feet where the Yadkin leaves the southwest corner, and the high ground is around 1,100 feet just off Jefferson Church Rd. That 440 feet of relief inside one county means very little buildable ground is naturally flat, so builders cut the uphill side and pushed the spoil downhill to make a level pad. The cut half — often Pacolet clay running to saprolite by about 33 inches — will not move for the life of the house. The fill half consolidates for decades. Probing the subgrade at the slab edges finds the break in about five minutes.

My walk sits over a buried creek in Ardmore — can you still lift it?

Sometimes, and the answer decides whether the repair lasts. If the subgrade under the walk is washing rather than consolidating — fines migrating out with groundwater from the culverted Peters Creek or Silas Creek channel — lifting the concrete without dealing with the water first buys about two years and a repeat visit. On those parcels I probe both slab edges, walk the exterior for where the buried channel actually runs relative to the house, and either specify subgrade water control (interception drain, gravel bed) before the lift or tell you the slab is a replacement candidate and not a lift candidate. That conversation loses me work and I have it anyway, because Winston-Salem is a small town wearing a city's clothes and the next call comes from the neighbor.

Free On-Site Inspection

Ready when you are, Winston-Salem.

Free on-site inspection and a fixed written price before anything else. Call (336) 221-7061 or book below.

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