Polyurethane Foam
Concrete Lifting in Mesa
Injectable polymer foam lifts sunken slabs, fills the voids under them, and cures in minutes — lightweight, waterproof, and clean enough to walk on the same day. No demolition, and the scope in writing first.
Polyurethane foam injection — also called foam jacking — lifts and re-supports settled concrete by injecting an expanding polymer through penny-sized holes in the slab. It’s the modern answer to a sunken driveway, patio or garage floor: the foam floods the empty space under the concrete, expands, and floats the slab back to grade in minutes rather than days. In Mesa, where soil moving under slabs is the usual cause of settlement, foam is a fast, low-mess way to fix the void without tearing anything out.
What Foam Injection Actually Fixes
Foam injection raises a settled slab and stabilizes the ground beneath it. We drill small ports through the concrete, inject a two-part polyurethane that expands on contact, and the foam fills voids, densifies weak soil, and lifts the slab back to level. Because it also seals the space it fills, foam does double duty — it re-supports the slab and keeps water from continuing to wash out the soil underneath.
Why the material matters
Polyurethane foam is lightweight, so it lifts the slab without adding heavy load that could re-compress the very soil that failed. It cures to a dense, load-bearing fill in about fifteen minutes, and it’s waterproof and non-organic, so it won’t wash out or break down over time. That combination — light, fast, and water-stable — is what sets foam apart from older lifting methods.
The Settlement Problems Foam Solves Across Mesa
Foam injection is the right tool for these common Mesa situations:
- Sunken driveways & garage floors — dropped slabs you’d rather not tear out and re-pour.
- Trip-hazard sidewalks & walkways — panels that need a fast, clean lift back to grade.
- Settling pool decks & patios — where added weight from mudjacking isn’t ideal.
- Voids under slabs — empty space left by soil washout that needs filling before more drops.
- Slabs near the house — leveling where a fast cure and minimal mess matter most.
Why Slabs Sink in Arizona
It comes down to the soil under the concrete. Mesa’s expansive clay swells when wet and shrinks when it dries, and caliche layers and loosely compacted fill settle unevenly. Irrigation and monsoon runoff wash the fines out from beneath a slab, leaving voids the concrete eventually drops into. Foam injection targets exactly that: it fills the void the soil left and firms up the weak ground, so the slab has something solid to rest on again.
How We Foam-Lift a Slab
Our process re-supports the slab from underneath and seals the void — fixing the cause, not just the height.
Inspect & Map
We measure the settlement, locate the voids, and mark discreet, penny-sized injection points.
Drill Ports
Small ports are drilled through the slab at the mapped points — far less intrusive than mudjacking holes.
Inject & Lift
Two-part polyurethane is injected; it expands to fill voids, densify soil, and float the slab to level.
Patch & Verify
Ports are patched flush, and because foam cures in minutes, we confirm the lift and the slab is ready to use.
Foam Injection vs. Tearing Out & Replacing
When a slab has sunk but is otherwise sound, foam re-supports it — and it beats replacement on almost every count.
Replacement is the answer when a slab is badly cracked and broken up — but for a slab that simply sank, foam is faster, cleaner, and far less costly. We’ll tell you honestly which yours is.
Foam Injection Cost in Mesa
Foam lifts are priced by slab size and how much lift and fill the void requires. An honest range:
A single settled walkway or small slab sits at the low end; a full driveway or large pool deck with deep voids runs higher. Most residential foam jobs land in this range.
We never quote sight-unseen — you get a written estimate after we measure the settlement and the void.
Not Sure How Bad It Is?
Get a straight answer. We inspect, diagnose, and send a written estimate — no pressure, no scare tactics.
Why Foam Injection Isn't a DIY Job
The foam kits sold online can’t match the expansion control, volume, or lifting force of professional two-part polyurethane, and an uncontrolled pour can over-lift or crack a slab as easily as under-fill it. Getting a slab back to grade without damaging it takes calibrated equipment, mapped injection points, and reading the lift in real time — not squirting foam under a slab and hoping it rises evenly.
Keeping a Foam-Lifted Slab Level
Foam handles the void; you handle the water. Grade soil away from your slabs, extend downspouts past driveway and patio edges, and fix irrigation or plumbing leaks near concrete. Keeping the soil under the slab from washing out again is the single best way to make a foam lift last for years.
Why Mesa Homeowners Choose Us
Polyurethane foam injection is precise, high-stakes work — and it’s exactly what our Mesa foundation crew does week in and week out. You get an honest diagnosis, a right-sized repair matched to what your home actually needs, and a written estimate before anyone digs — no scare tactics, and no pressure to buy the biggest system on the truck.
Recent Foam Injection Projects Around Mesa
Foam Injection FAQ
For most residential lifts, foam’s advantages matter — it’s lightweight, cures in minutes, uses smaller holes, and won’t wash out. Mudjacking still has its place on certain heavier slabs. We recommend the method that fits your slab rather than pushing one for every job.
The foam reaches most of its strength in about fifteen minutes, which is why a foam-lifted slab is usually ready to use the same day — often within an hour or two of finishing.
Yes, when it’s done right. We map injection points and control the lift in real time so the slab rises back to grade evenly rather than tilting or cracking. That control is exactly what the professional equipment provides.
Yes. Cured polyurethane foam is waterproof and non-organic, so it won’t absorb water, wash out, or decompose — which is a big reason foam lifts hold up in Arizona’s wash-and-dry soil cycles.
Most residential foam jobs fall between about $800 and $3,500 depending on slab size and how much lift and void-fill is needed. You get a written estimate after we measure the settlement.
We provide an honest inspection and a written estimate — not a ‘free inspection’ that turns into a sales pitch. You get a clear read on whether foam is the right fix for your slab.
Other Foundation Repairs We Handle
Sunken driveways, patios and walkways lifted with foam or mudjacking, whichever fits.
GPR tendon mapping and repair for cracked and moving post-tension slabs.
A written diagnosis of what’s moving and why, before you spend a dollar.
Foam Injection Across Mesa
Foam Injection In Your Mesa Neighborhood
Lift Your Slab With Foam
A written, no-pressure estimate from a Mesa foundation crew that does this work every week — and tells you honestly when a smaller fix will do.