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Void Filling & Soil Stabilization in DFW

Stop settlement at the source by filling voids and stabilizing soft soils beneath the slab.

Settlement happens because something gave way underneath. Sometimes that’s a small pocket; sometimes it’s a network of voids that have been growing for years. Void filling with structural polyurethane foam closes those gaps, displaces any standing water, and stabilizes the soil under the slab so the lift you do today still holds five years from now.

When void fill is the right call

  • Confirmed voids from soil probing, drilling, or ground-penetrating radar
  • Repeat settlement after a previous mudjacking job
  • Around manholes, lift stations, and utility vaults
  • Beneath warehouse slabs and racking pads
  • Approach slabs at bridge abutments and loading docks

We work residential, commercial, and light industrial — talk to us about scope.

How we do it

Drilling

We drill a series of dime-sized holes through the affected slab.

Filling

High-density polyurethane foam is injected beneath the slab. As it expands, it displaces water and air and lifts the concrete to grade.

Patching

Holes are sealed with non-shrink grout, leaving a clean, level surface ready to use the same day.

Common questions

How long does polyurethane foam concrete leveling last?

Polyurethane foam is hydrophobic, chemically inert, and engineered to outlast the slab itself. Most jobs carry a multi-year warranty and the foam itself does not break down with moisture or temperature swings.

How is foam leveling different from mudjacking?

Mudjacking pumps a heavy slurry of cement and soil under the slab, which adds weight and can wash out over time. Polyurethane foam weighs roughly 4 lbs per cubic foot, cures in minutes, and is waterproof — so the lifted slab stays put.

How much does concrete leveling cost?

Pricing depends on slab size, lift height, and access. Most residential projects in DFW fall between a few hundred and a few thousand dollars — typically 50–75% less than tear-out and replacement. We offer free on-site estimates.

How long does the job take?

Most driveway, sidewalk, and patio jobs are completed in a single visit, often in a few hours. The slab is safe to walk on immediately and ready for vehicle traffic the same day.