Other or unspecified / Polyurethane Foam Slab Lifting
Polyurethane Foam Slab Lifting in San Antonio, TX
Lift and level sunken concrete slabs with lightweight polyurethane foam for a smooth, stable surface.
When a concrete slab sinks, you may see a gap between the slab and adjacent surfaces, widening cracks, or water pooling in low spots after rain. San Antonio's expansive clay and occasional heavy rain can wash out supporting soil, leaving driveways, patios, or garage floors uneven. Homeowners often feel a bounce when walking across the area, and doors or windows may stick because the floor framing has shifted with the slab.
Our crew starts by marking the injection points based on the slab's size and the amount of lift needed. Small holes are drilled through the slab at each point, and a two-component polyurethane foam is pumped beneath the concrete. The foam expands, filling voids and gently raising the slab to the target height. Once the desired level is reached, the holes are patched with a quick-set cement, leaving a clean, level surface that can be used within an hour.
Cost depends on slab size, concrete thickness, and the amount of foam needed to lift it. In San Antonio, a permit is usually unnecessary unless the work impacts a public walkway or alters drainage. Foam cures best between 50°F and 90°F; extreme heat speeds expansion, while cold slows it. If the uneven slab is a trip hazard or lets water pool near the foundation, prompt repair prevents further settlement and additional repair costs.
Other or unspecified service categories
Other or unspecified
- Polyurethane Foam Slab Lifting - Lift and level sunken concrete slabs with lightweight polyurethane foam for a smooth, stable surface.
Common questions
How soon can I walk on the slab after foam lifting?
The foam hardens within minutes, so light foot traffic can resume within an hour after the repair.
Is foam lifting suitable for all concrete slabs?
Foam lifting works best for slabs that are still intact and have enough thickness to hold the injection holes; severely cracked or shattered slabs may need replacement.
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Call (210) 229-8518 to request contact from a local provider.
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