Polyurethane Foam Injection
The modern, waterproof, precision method for lifting and stabilizing concrete.
Free Estimate · Spokane-Focused Service · Honest Recommendations
What is polyurethane foam injection?
A plain-English overview.
Polyurethane foam injection is the modern method behind most concrete leveling today. Two liquid components meet inside a dime-sized port, expand into a rigid closed-cell foam, fill the void beneath the slab, and gently lift it back to level. The foam is waterproof, chemically inert, and cures in about 15 minutes — the same material used to stabilize highways, bridges and airport runways.
- Dime-sized ports — practically invisible when finished.
- Cures in about 15 minutes — drive on the same afternoon.
- Waterproof and inert — won't wash out over time.
- Adds negligible weight to already-tired soil.
Signs you may need this service
How to tell if your slab is a candidate.
- ✓Recently poured or high-value slabs that must stay in service.
- ✓Slabs where landscaping or hardscaping needs to be protected.
- ✓Repairs where speed of return-to-service matters.
Recognize Any of These?
Send a photo or schedule a free on-site inspection — we'll give you a straight answer.
Common causes
Why concrete settles in the first place.
Most slab settlement is driven by what's happening beneath the concrete — not the concrete itself. Fix the cause and the fix lasts.
- Poor soil compaction beneath the original pour.
- Water from downspouts, gutters or broken drain lines washing out the sub-base.
- Freeze / thaw cycles opening voids under the slab.
- Tree roots and vegetation shifting the soil beneath the concrete.
- Loose fill material that has settled over time.
Repair vs. replacement
Why homeowners choose repair instead of replacement.
Lifting reuses the concrete you already have — for a fraction of the cost, disruption and mess of a tear-out and repour.
- Concrete leveling is often less costly and less disruptive than tear-out and replacement.
- Reuses the concrete you already have — no color mismatch with a fresh pour.
- Modern polyurethane foam lifting for precise, controlled results.
- Honest recommendations — if replacement is the better call, we'll say so.
Our process
Four steps, no surprises.
- 01
Free Inspection
We walk the site, measure the settlement and identify the cause underneath.
- 02
Personalized Repair Plan
You get a fixed written quote and clear options — no pressure to decide on the spot.
- 03
Precision Concrete Lifting
Dime-sized ports, foam injection and 1/8-inch lift control.
- 04
Final Walkthrough
We walk the finished work with you and answer any questions.
Before & after
Real projects, coming soon.
We're building out a full photo gallery for this service. In the meantime, ask for recent examples during your estimate.
Gallery coming soon
Before / After — Polyurethane Foam Injection
Gallery coming soon
Before / After — Polyurethane Foam Injection
Frequently asked questions
Homeowner questions about polyurethane foam injection.
- Is foam safe around plants and water?
- Yes. Once cured (within seconds), polyurethane foam is inert and non-toxic — it's used under highways and airports for the same reason.
- How is foam different from mudjacking?
- Foam is lighter, cures faster, uses smaller ports and won't wash out. Mudjacking uses a heavier cement slurry that has its place on very large industrial slabs.
- Is concrete lifting cheaper than replacement?
- Concrete leveling is often less costly and less disruptive than tear-out and replacement. Final pricing depends on slab size, access, and condition — we provide a fixed written quote after a free inspection.
- How soon can we use the slab again?
- Many surfaces can be returned to service shortly after lifting. Project-specific timing will be explained during the estimate.
- Will lifting damage the concrete or landscaping?
- Ports are dime-sized and patched. Crews work carefully around plants, hardscape and finishes — most jobs leave the site looking as it did before, except level.
Want more detail? Read our related Learning Center guides or ask a specialist.
Ready when you are
Get a straight answer on your polyurethane foam injection.
Free on-site inspection. Fixed written quote. No pressure, no upsells — just an honest recommendation.
Related services
Also worth a look.
Mudjacking
Traditional slurry-based slab leveling — proven, cost-effective and still the right call in the right situation.
Read about MudjackingConcrete Lifting
Raise sunken slabs safely, evenly and precisely — up to 1/8-inch tolerance.
Read about Concrete LiftingSlab Stabilization
Stop movement in a settling slab — hold it in place before it drops further.
Read about Slab Stabilization
Communities we serve
Polyurethane Foam Injection for your neighborhood.
Local specialists across Spokane and surrounding communities — with same-week scheduling in most neighborhoods.
Lift it — don't replace it.
Concrete leveling saves the slab you already have, at a fraction of the cost of replacement.
- Often less costly and less disruptive than tear-out and replacement
- Repair before replacement when appropriate
- Modern polyurethane foam lifting
- Honest recommendations — no pressure, no upsells
Free Estimates · Spokane-Focused Service · Honest Recommendations