Concrete Leveling & Slab Lifting in Cary, North Carolina
When a walkway, patio, or garage slab settles unevenly, the cause is almost always what's happening in the soil below it, not the concrete itself. Our concrete leveling and slab lifting service raises sunken sections back to grade in a way that works with Cary's expansive clay instead of fighting it.
Concrete Leveling & Slab Lifting Built Around How Cary Concrete Actually Fails
Sunken concrete around Cary is almost never a sign of bad concrete — it is a sign that the soil underneath has compacted, washed out, or shifted after the original pour. This shows up often in newer subdivisions around Holly Springs and Fuquay-Varina, where slabs are poured over recently graded fill dirt that is still settling, and in older lots where a downspout or grading issue has quietly washed soil out from under a walkway or patio for years.
Rather than break out a settled slab and repour it, concrete leveling raises the existing panel back to grade by filling the void underneath it, using either a cement-based slurry or a lightweight polyurethane foam depending on access, soil condition, and how much lift is needed. Polyurethane foam has become the more common choice for driveways and patios because it cures in about fifteen minutes, weighs a fraction of traditional mudjacking material, and is far less likely to add extra load to soil that is already struggling. We will walk you through both options and what makes sense for your specific slab, access, and budget.
Signs You May Need Concrete Leveling & Slab Lifting
- A step-down or trip hazard where two slab sections meet
- A patio or walkway that visibly slopes toward the house
- Standing water where there wasn't any when the concrete was new
- Gaps opening between a slab and the foundation or garage
Common Questions
Concrete Leveling & Slab Lifting FAQ
Is polyurethane slab lifting as strong as replacing the concrete?
Yes, when the existing slab is otherwise in sound structural condition. Polyurethane foam expands to fill voids and support the slab from beneath, and it will not compress or wash out the way loose fill soil can over time. It is not a fix for concrete that is cracked through or structurally failed.
How much lift can you achieve with slab leveling?
Most residential sinking we see in Cary is in the one to three inch range, which is well within what foam or slurry leveling can correct in a single visit. Larger drops sometimes point to a bigger drainage or foundation issue worth investigating first.
Will the sinking come back after leveling?
It can, if the original cause (usually a drainage problem directing water under the slab) isn't corrected at the same time. We look at downspouts, grading, and irrigation as part of every leveling estimate, not just the slab itself.