Lift a Settled Slab Foundation Without Tearing It Out

No. Epp Foundation Repair does not perform, quote, or warranty mudjacking, the older method that pumps a heavy cement slurry under a slab. Every slab lift Epp completes uses polyurethane foam injection instead, because the light foam does not add weight to soil that has already failed to support the slab once. Slab jacking is the broader term for lifting a slab by injecting material beneath it; Epp's version of that service is always foam, with slab piers added where the soil needs them.

No. This page is about the slab a house sits on. Driveways, sidewalks, patios, and pool decks are flatwork, and Epp's concrete leveling crew lifts those with the same foam under a different set of rules. A settled slab foundation carries walls and roof load, so the inspection here looks at the structure above the slab, not only at the slab surface.

Sometimes. Foam restores support when the problem is a void under an otherwise sound slab on soil that can still carry the house. When the bearing soil itself has failed, foam fills the space but does not fix the cause, and the slab would settle again. That is when Epp installs slab piers to competent soil and uses foam to fill what is left. The inspection is what decides, and the Customized Repair Estimate states which one applies to your home.

Stabilization is guaranteed and lift is attempted. Many slabs come back close to their original height; others rise partway because the slab has cracked into sections that move independently, or because lifting further would crack finishes above. The crew lifts in small increments, stops where the slab is fully supported, and tells you before starting what is realistic for your slab.

Floors that slope toward one corner, cracks in the slab itself, a floor that feels uneven underfoot when you walk across a room, interior doors that no longer latch, and cracks that open at the corners of windows and door frames. Where the slab has pushed up instead of down, the cause is usually water and expansive clay, which is foundation upheaval rather than settlement and needs a different fix.

Less than most foundation work. The ports are small, the work happens from inside the affected rooms or along the slab edge, and the foam cures within minutes, so rooms are back in use the same day. Furniture near the injection points is moved and protected, and the patched ports blend into the slab.