The hilly terrain and large tree roots in Austin often cause driveways and sidewalks to heave or settle unevenly. Poly-injection is the eco-friendly solution for Austin homeowners. Our lightweight foam fills the voids left by tree roots or washed-out soil without damaging the surrounding landscape, restoring your curb appeal instantly.

Stop Settling, Lifting, and Cracks—Without Replacing Your Slab

Uneven slabs, trip hazards, and voids don’t always require demolition. Our polyurethane foam injection stabilizes soil, fills gaps, and can lift sunken concrete—often in a single visit with minimal disruption.

Fast, Cost-Effective, Minimal Mess

Crown Leveling restores support to driveways, walkways, patios, pool decks, and interior slabs using high-density polyurethane foam. Most projects are completed in hours, not days, so you get back to normal quickly and affordably.

Why Fix It Now

• Prevents small issues from turning into major repairs

• Reduces safety risks from trips and uneven surfaces

• Helps protect surrounding structures from water intrusion and erosion

• Preserves property value and curb appeal

What We Repair

• Cracked or sinking driveways and sidewalks

• Slab foundations and interior floors with voids or settlement

• Concrete walls with non-structural cracks

• Sunken pads (HVAC, generator, etc.) and pool decks

Key Benefits

• Rapid, budget-friendly repair—no tear-out or heavy equipment

• Long-lasting performance—foam is durable and water-resistant

• Restores support & grade—helps improve slope and drainage

• Targeted application—foam expands to fill voids and stabilize soils

Note: Every property is different. Foam lifting and stabilization can reduce further movement, but no contractor can guarantee settlement will never recur.

How Polyurethane Injection Works

1. Access – We drill small, strategically placed holes through the slab.

2. Injection – Two-part polyurethane is injected beneath the concrete.

3. Expansion – The foam expands to fill voids, compact soils, and—when needed—gently raise the slab.

4. Finish – Holes are patched and the area is cleaned. Many surfaces are ready for use the same day.

Why Crown Leveling

• Focused expertise in slab lifting and crack injection across Southeast Texas

• Minimal-invasive methods that respect your landscaping and schedule

• Straightforward pricing and clear expectations

Don’t Replace It—Lift and Repair It

If you’re dealing with cracks, voids, or uneven concrete, polyurethane injection is a smart first step before considering replacement. Request an assessment, and we’ll tell you exactly what it needs—no upsells, no guesswork.