Slab Foundation Repair.
Most Central Texas homes sit on a concrete slab poured directly on expansive clay. When that clay moves, the slab cracks, tilts, and drops — and GroundLock stabilizes it with steel piers.
Most Central Texas homes sit on a concrete slab poured directly on expansive clay. When that clay moves, the slab cracks, tilts, and drops — and GroundLock stabilizes it with steel piers.
What slab foundation repair involves
A slab-on-grade foundation is a single concrete pad cast on the soil. In our region it fails three ways: edge drop, where the perimeter settles; center heave, where the middle lifts; and differential settlement, where one area sinks below the rest. Repair means recovering elevation and holding it — which, on these soils, requires reaching stable strata.
Why steel piers — not concrete piers
Because the clay beneath a slab moves seasonally to depth, only a pier driven past that zone gives permanent support. GroundLock installs galvanized steel piers exclusively for slab repair; we don’t use concrete, pressed, or hybrid piers, which often stop inside the active soil.
Signs you may need slab foundation repair
- Doors and windows that stick, drag, or won’t latch
- Stair-step cracks in exterior brick or block
- Sloping, bouncy, or visibly uneven floors
- Drywall cracks fanning from door and window corners
- Gaps opening between walls, trim, and the ceiling
- Cracks in the slab or at the garage floor
The GroundLock process
Free elevation survey
Map the slab to ±⅛ in and locate every drop.
Drive steel piers
Galvanized piers driven through the clay to load-bearing strata, to refusal.
Lift & lock
Raise toward level; transfer the load onto the piers.
Verify & warranty
Re-survey, document the lift, and warranty it for life.
Protecting the repair
Because water and soil movement cause most foundation failures, lasting results often pair the structural fix with drainage correction, erosion control, or regrading — recommended only where it protects your foundation.
FAQs
Can a cracked slab be repaired without replacing it?
Is slab repair covered by warranty?
Book your free
foundation inspection.
Tell us where you are and what you’re seeing. A GroundLock structural advisor confirms within one business hour.
Get your free foundation inspection.
A licensed inspector measures your slab elevation to ±⅛ in and gives you a written, engineer-backed plan — with zero pressure.