Polyurethane concrete raising is a process that lifts and levels sunken concrete by injecting expanding foam beneath the slab, restoring it without replacement.
Also known as foam jacking or poly-jacking, this method is used to fix uneven sidewalks, driveways, patios, steps, and garage aprons where the concrete has settled but remains structurally sound.
Concrete settles over time due to soil erosion, poor compaction, and water movement. When that happens, polyurethane concrete raising corrects the problem at the source by stabilizing the soil and lifting the slab back into place—eliminating trip hazards and drainage issues without tearing anything out.
How Polyurethane Concrete Raising Works
Step 1: Evaluate the Slab
The settled concrete is inspected to determine why it sank and where lift points are needed.
Step 2: Drill Small Injection Holes
Small holes—about the size of a dime—are drilled into the concrete. These are significantly smaller than holes used in traditional mudjacking.
Step 3: Inject Expanding Polyurethane Foam
A high-density, hydro-insensitive polyurethane foam is injected beneath the slab. As the foam expands, it fills voids, compacts the soil, and precisely lifts the concrete to its proper level.
Step 4: Patch and Clean Up
The holes are sealed, the area is cleaned, and the concrete is ready for use—often within hours.
Benefits of Polyurethane Concrete Raising
Costs Less Than Replacement
Typically 50–70% less than removing and pouring new concrete.Fast, Same-Day Results
Most projects are completed in a single visit with immediate usability.Minimal Disruption
No heavy equipment, no excavation, and no damage to landscaping.Long-Lasting and Durable
The foam is water-resistant, won’t wash out, and maintains its strength over time.Environmentally Responsible
Uses less material and reduces waste compared to full concrete replacement.
Polyurethane Concrete Raising vs. Replacing Concrete
If your concrete is sunken but not cracked or broken, raising it is usually the smarter option. Replacement is more expensive, more disruptive, and often unnecessary when the slab itself is still in good condition.
Polyurethane concrete raising restores safety, appearance, and function—without starting over.
Frequently Asked Questions
Is polyurethane concrete raising permanent?
Yes. The polyurethane foam is water-resistant, chemically stable, and designed to provide long-term support that prevents future settling.
How long does polyurethane concrete lifting take?
Most projects take just a few hours, and the concrete is typically ready for use the same day.
Is foam jacking cheaper than replacing concrete?
In most cases, yes. Polyurethane concrete raising usually costs 50–70% less than full concrete replacement.
What types of concrete can be lifted?
Sidewalks, driveways, patios, steps, and garage aprons with intact, unbroken slabs are ideal candidates.
A Smarter Way to Fix Sunken Concrete
For homeowners in Minneapolis, St. Paul, and surrounding suburbs, polyurethane concrete raising is the fastest, cleanest, and most cost-effective way to fix sunken concrete and restore peace of mind—without replacement.
Fast, clean, and eco-friendly alternative to traditional mud jacking
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Polyurethane foam injection delivers durable, long-lasting results
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