Slab Piers: Stabilizing and Lifting Sunken Concrete Slab Foundations

They solve different problems. Mud jacking lifts a slab by pumping a cement-based slurry into the voids beneath it, which works well for flatwork like driveways, sidewalks, and patios. Slab piers are a deeper structural fix: steel piers carry the weight of the slab down to firm, load-bearing soil so the load no longer rests on the shifting upper soil. For a settled slab foundation, piers reach past the soil that caused the movement, while mud jacking fills the gap above it. During your inspection we explain which approach fits your slab and why, rather than defaulting to one.

Both are steel pier systems that carry a structure's weight down to stable soil, but they attach to different parts of the home. Push piers are typically secured to the footings of a home with a crawl space or basement. Slab piers are designed for slab-on-grade homes, where the living space bears directly on a concrete slab, so they support the slab itself. The right system depends on how your home is built and how it has settled, which is what we confirm during the inspection.

Often they can recover a meaningful amount of the settlement, and lifting the slab can help close cracks and bring an interior floor closer to level. The honest answer is that the practical lift depends on the slab, how it has settled, and the soil conditions beneath it. We aim for the best achievable result and stabilization against future settling, and we are realistic with you about what is reasonable for your specific home instead of promising a perfect return to level.

There is no single number, because the right depth is wherever firm, load-bearing soil or bedrock is for your site. Across the Piedmont and the SC Upstate, slab piers are designed to reach past the active clay layer that swells and shrinks with the seasons, since that upper soil is the source of the movement. In Sandhills sandy soils the depth to stable bearing can differ again. Each pier is driven until it meets the resistance the engineering requires, which is what tells us it is seated on soil that can hold the load.

That is exactly what they are designed to do. By transferring the load onto stable soil or bedrock well below the active upper soil, slab piers take the slab off the layer that was moving. Because managing water around the home protects that result, we often recommend grading or drainage corrections as well, and we go over those during the inspection so the stabilization holds up over time.

Cost depends on the number of piers required, how deep they have to be driven to reach stable soil, access to the slab, and the soil conditions at your home, along with whether any drainage or grading work is recommended alongside the piers. Because those factors vary from one home to the next, we provide pricing after a no-pressure inspection rather than a flat number online. The inspection is how we give you an accurate, honest quote for your specific situation.

The work is focused at the pier locations along the affected areas of the slab, where we set the brackets, drive the piers, and then finish and clean up the area afterward. It is a structural repair, so there is work at each pier point, but it is targeted to where the piers go rather than spread across the whole home. We walk you through what to expect at your home during the inspection.

Let's take the first step toward a healthy home.

A local specialist will inspect your foundation, walk you through the findings, and send a clear estimate. no cost, no pressure.