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.
A licensed local crew — usually out in 24 to 72 hours. Written scope, fixed price, no pressure.
Concrete lifting in Mint Hill breaks down along the same 1980s-2000s subdivision versus older-farmhouse-conversion split that defines almost every foundation trade in this town. The subdivision jobs off Matthews-Mint Hill Rd and Lawyers Rd are typical Charlotte tract driveway and garage slab work — settlement over expansive Piedmont red clay, freeze-thaw cycles in December and January pulling the corners down, and the occasional bad backfill under a stoop or a walkway that shows up as a trip hazard around year 15. The farmhouse conversion jobs on acreage lots along Wilgrove-Mint Hill Rd or the rural stretches of Fairview Rd are a different animal — often add-on concrete work poured over decades on top of soil that never got a proper base prep, sometimes over old fill from a filled-in cistern or a demolished outbuilding.
Last winter I lifted a 2001 Wildcat Cove driveway that had settled two and a half inches at the garage apron. Standard Mint Hill subdivision fix: HMI TerraThane 24-024 polyurethane on a 12-inch injection grid, rotary laser and a receiver clamped to the slab edge to watch elevation in real time, controlled lift to within an eighth of an inch of target, drivable inside an hour. Clean four-hour job. Two weeks later I was out on Lawyers Rd on a 1962 farmhouse where the owner had added a concrete rear porch pad in the 90s directly on top of an old cistern the previous owner had filled with construction debris. Whole pad had tilted three inches away from the house and cracked in two places. That was not a straight lift. That was a lift plus a void fill plus stabilization of a fill layer that was never going to stay put without something to hold it.
Free on-site inspection anywhere in 28227 — Downtown Mint Hill, Veterans Memorial Park, out to the Matthews-Mint Hill Rd border, up to Fairview Rd, and out around the neighborhoods near Mint Hill Athletic Association. I will tell you on the inspection whether the slab you are looking at is a straight polyjacking job, a two-step lift-and-stabilize job, or a tear-out and repour where the underlying soil condition means lifting is a losing bet.
Polyurethane foam lifting is the default for almost every Mint Hill job. We drill 5/8-inch injection ports through the slab on a 12- to 18-inch grid, thread an injection gun into each port, and inject a two-part high-density polyurethane that reacts under the slab and lifts it in a controlled arc. Rotary laser on a tripod and a receiver clamped to the slab edge give real-time elevation feedback, so we stop injection at exactly the target lift. Foam reaches roughly 90 percent of its compressive strength within 15 minutes and the slab is drivable in 30 to 60 minutes. Standard residential driveway and walkway lifts in the 90s subdivisions run HMI TerraThane 24-024, the 4-pound-per-cubic-foot workhorse polymer. Garage slabs, larger commercial pads, or anywhere the load calculation demands higher compressive support step up to HMI TerraThane 24-046 at 6 pcf.
Farmhouse conversion lots along Lawyers Rd, Wilgrove-Mint Hill Rd, and rural Fairview Rd get a soil history question before we quote. Farms and rural lots in the pre-1970s era filled in cisterns, wells, and small outbuilding footprints with whatever was on hand — brick rubble, wood, unfractured stone, sometimes bagged trash. When later owners poured concrete over those fill zones, the concrete looks fine for years and then eventually the fill compresses or a void forms and the slab starts to move. Lifting that slab with straight polyurethane will get you a level surface today but it will not solve the underlying soil issue, and depending on the fill you may be back inside two years. The honest answer on some of those slabs is to core-drill, probe the fill, and either specify a deeper injection program with stabilization at the fill layer or recommend tear-out and repour with a proper base. That conversation happens on the inspection, not after the invoice.
Cold-weather scheduling matters more in Mint Hill than in tighter urban lots because so much of the town is open acreage and slab surface temperatures drop faster overnight. Polyurethane reacts slower below 40 degrees ambient. We schedule Mint Hill lifts for morning starts on cold days and preheat the material to specification before injection. Freeze-thaw settlement at 6-8 inch depth in Mecklenburg drives perimeter movement on subdivision driveways every winter — code requires footings at 12 inches minimum but a lot of 1980s driveways were poured on shallower base than they should have been. Lifting solves the immediate problem. Long-term movement depends on the sub-base and sometimes needs more than foam.
Polymer selection is by application, not by preference. HMI TerraThane 24-024 at 4 pcf is the default for residential driveways, walkways, and pool decks in the 90s and 2000s subdivisions off Matthews-Mint Hill Rd. TerraThane 24-046 at 6 pcf for garage slabs, front porches with heavy loading, and any slab where the design load calculation calls for higher compressive support. Alchemy-Spetec AP Lift 430 as an alternate for the 4 pcf category. AP Lift 475 for the 6 pcf. Prime Resins Precision Lift 400 when the void is larger than expected and we need a slower-reacting foam that flows further before it kicks — useful on farmhouse conversion lots where void volume is often underestimated on the initial inspection.
Injection port specification is 5/8-inch through-slab, drilled on a 12- to 18-inch grid depending on slab thickness and lift height required. Ports get patched with a fast-cure grout after injection so they are barely visible within a week. Rotary laser is a Topcon RL-H5A or equivalent with a receiver clamped to the slab edge — we do not eyeball a lift. Real-time elevation feedback stops injection at the target and prevents overlift, which is the most common amateur mistake and cracks slabs.
Mudjacking with limestone slurry is a fallback we occasionally spec when polyurethane is not the right call — usually on farmhouse-lot slabs where the underlying void is large enough that foam volume becomes cost-prohibitive. Slurry cures 8 to 24 hours and the slab is not drivable during that window, which is a real scheduling constraint for a homeowner whose driveway is their only access. That tradeoff gets discussed on the inspection.
For any interior slab issues on partial-crawl-partial-slab Mint Hill homes — occasional on the newer 2000s builds where an addition was slab-on-grade — HMI TerraThane 24-024 is also our default injection material for interior slab lifting, and the injection ports are patched with a color-matched grout to minimize visual impact on finished flooring above.
Yes — Mint Hill is a regular concrete lifting route. Free on-site inspection anywhere in Mint Hill, fixed written quote before we touch anything.
Mint Hill's mix of predictable subdivision driveway settlement and older farmhouse-lot slabs poured over unknown fill (former cisterns, demolished outbuildings, farm-era grade changes) means every concrete lifting job here starts with soil history, not just slab measurement. Freeze-thaw settlement at the perimeter is more common in the 1980s subdivisions than in tighter-lotted areas.
28227. All Mecklenburg County addresses covered.
Ninety percent of the time on a 90s or 2000s subdivision driveway that settled at the apron, it is a polyjacking job. Two-part polyurethane under the settled section, controlled lift to within an eighth of an inch of level, drivable inside an hour. If the apron has cracked through and the crack is more than about a half-inch wide, we can still lift but you may want to consider a decorative overlay or a partial saw-cut and repour of the worst section. That gets discussed on the inspection. Full tear-out is almost never necessary on a subdivision driveway.
Depends on what is under the pad. Farmhouse-lot additions from the 70s, 80s, and 90s were often poured on top of unknown fill — old cisterns, foundation remnants from demolished outbuildings, garden dumps, or just uncompacted topsoil. We will core-drill and probe before we quote a lift. If the fill can be stabilized with polyurethane at the fill layer, we lift and stabilize in one program. If the fill is so poor that lifting will just kick the can down the road, we will tell you the honest answer is tear-out and repour on a proper compacted base. Not every farmhouse addition slab is a lift candidate.
Polyurethane injection through a slab does not interact with a septic system as long as we know where the tank and field are and we are not injecting into the field area. On Mint Hill lots where the septic layout is often close to the house, we ask about tank and field location on the inspection and confirm before we drill any ports. This is more of an issue for driveway or side-yard slabs than for a garage apron or front walkway on a typical subdivision lot.
Ambient temperature below about 40 degrees slows the polymer reaction and we typically reschedule if daytime highs are forecast under that. Below 32 degrees at the slab surface is a hard stop — the material will not cure properly and the lift will not hold. Winter scheduling in Mint Hill is doable but we watch the forecast more carefully than in Charlotte proper because Mint Hill's open acreage cools faster overnight and slab surface temperatures lag behind ambient in the morning. Morning starts on cold days, preheated material, and forecast checks the day before are the routine.
Free on-site Mint Hill inspection. Fixed written quote. Call (980) 227-1769 or book below.