Straight Answers
If a Winston-Salem concrete slab is structurally sound but has sunk, leveling can usually lift it back into place in a few hours, at a fraction of the cost of tearing it out, and it is drivable the same day. If the slab is cracked through, crumbling, or the sections have shattered, leveling has nothing solid to lift and replacement is the answer. The dividing line is the condition of the concrete itself, not how far it has dropped: a solid slab 3 inches low is a better leveling candidate than a shattered one that is barely off grade.
Updated Aug 17, 2026 · Winston-Salem Concrete Co, Winston-Salem, NC
Settled slabs get lifted by pumping material through small holes drilled in the concrete: either a cement slurry, the traditional mudjacking, or an expanding polyurethane foam. The material fills the void that let the slab drop, then raises it back to grade.
Foam has become the common choice for driveways and walks: smaller holes, lighter material over already-soft soil, and it cures in minutes rather than days. Either way the job typically takes hours, not days, and there is no demolition, no forms, and no 7 day wait to drive on it.
The honest diagnosis comes down to what the concrete itself looks like, and why it moved in the first place.
| What you have | The right fix |
|---|---|
| Solid slab, sunk or tilted, few or hairline cracks | Leveling |
| Trip hazard where two slabs meet at different heights | Leveling, often a single-visit job |
| Slab cracked into large pieces that still sit flat | Sometimes liftable, judged on site |
| Slab cracked through, pieces rocking or pumping | Replacement |
| Surface crumbling, scaling, coming apart | Replacement, the material is done |
| Slab keeps re-settling after a previous lift | Fix the water problem, then decide |
Voids under Piedmont slabs are nearly always water's work: a downspout dumping beside the drive, grade that routes runoff under the slab, or clay that was never compacted washing out a little every storm. Lifting the slab without fixing the water means booking the same job again in a few years. A proper quote addresses both.
A leveling quote and a replacement quote for the same slab are not two prices for one job, they are two different diagnoses. If you hold both, the useful question for each contractor is why the other approach is wrong for this slab. The one who can answer specifically, in terms of your concrete and your drainage, is usually the one to believe.
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