Concrete Repair Services › Polyurethane Foam Lifting
Polyurethane Foam Lifting in Ann Arbor, MI
Polyurethane foam lifting uses a two-part chemical foam that expands after injection to fill voids and raise sunken concrete. The material cures in minutes rather than hours, and the injection holes are about the size of a dime — much smaller than mudjacking. It is a good fit for slabs near the house, slabs with limited access, or situations where you need the surface back in use quickly.
Ann Arbor Concrete Repair Pros provides polyurethane foam lifting for homeowners across Ann Arbor, MI. Call for a free inspection and a written quote before any work begins.
When to Call
When You Need Polyurethane Foam Lifting
- Your pool deck has sunken sections that create an uneven walking surface around the edge
- Interior garage floor dropped along one wall and the door now scrapes the concrete
- A sunken slab is right next to your foundation wall and access is tight
- You need a slab usable again the same day without waiting for slurry to cure
- A basement floor section settled and you want minimal dust and mess inside
- Your front stoop dropped slightly and the gap between it and the house is growing
How It Works
Our Process for Polyurethane Foam Lifting
- 1
Evaluate the slab
We check the slab condition, measure drop, and look for signs that foam lifting is appropriate. Foam works best on slabs that are intact and where the void is not massive.
- 2
Mark injection points
We map out small dime-sized hole locations based on where the void is concentrated. Fewer holes than mudjacking, but placement still has to be deliberate.
- 3
Drill and insert ports
Small ports are drilled through the slab. These are narrow enough that patching them later is nearly invisible compared to mudjacking holes.
- 4
Inject foam in controlled lifts
We inject the two-part foam in short bursts. It expands quickly, so we go in small amounts and check grade between injections to avoid overshooting.
- 5
Cure check and verification
Foam sets in minutes. We verify the lift with a level, check that adjacent slabs are still aligned, and confirm no new stress cracks formed during lifting.
- 6
Patch ports and clean up
Injection ports are filled and finished. The surface is cleaned of any foam residue. You can walk on the slab almost immediately after we are done.
What's included
- Two-part polyurethane foam injection through small drilled ports in the slab
- Grade verification before and after lift to confirm target elevation
- Patching of all injection ports, finished as flush as the surrounding surface allows
- Surface cleanup including any foam bleed around the port areas
- Same-visit walk-through confirming slab stability and alignment with adjacent slabs
What's not included
- Surface crack filling or cosmetic repair to the slab face — separate service
- Soil stabilization if the underlying problem is active erosion from drainage failures
- Lifting slabs with major structural fractures that foam pressure could worsen
Real Situations
Common Scenarios in Ann Arbor
A homeowner in Ann Arbor's Water Hill neighborhood has a basement utility room where a floor section dropped after a slow plumbing leak was repaired.
Working indoors with minimal equipment and small ports makes foam lifting well-suited here. We lift the section back to level, and because cure time is fast, the room is accessible again within the hour. We do not address any remaining moisture issue — that needs to be handled separately before we lift.
A homeowner in the Vineyard Lake area has a concrete pool deck with two sunken sections along the far edge, creating a lip that is a slip hazard.
Pool decks need careful lifting because the foam can shift if there is active water intrusion underneath. We assess drainage first, then lift conservatively to get the sections flush. Fast cure time means the deck is back in use the same day.
A landlord managing a rental property near campus needs a sunken front walkway fixed with minimal disruption to tenants.
Polyurethane lifting works fast and leaves a cleaner site than mudjacking slurry does. We are in and out quickly, the walk is usable the same day, and the small patch holes are less noticeable — which matters for a rental property's curb appearance.
Ann Arbor Context
Why this matters in Ann Arbor
Ann Arbor's winters regularly push frost several feet into the ground, which is hard on slabs that lack solid sub-base support. Newer construction in areas like Glacier Hills used post-tensioned slabs in some cases, but most residential flatwork is conventional and susceptible to frost heave and soil consolidation. Polyurethane foam handles tight-access situations common in the city's older neighborhood lots where equipment clearance is limited.
Straight Talk
About pricing & scope
Foam material cost is higher per job than mudjacking slurry, so the overall price tends to be higher. The trade-off is faster cure, smaller holes, and less mess. Scope can expand if we find the void is larger than expected once we start injecting — foam fills it regardless, but material use goes up. We tell you if we are seeing that happen before finishing.
What This Fixes
Problems We See in Ann Arbor
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