Concrete Raising & Leveling in Minneapolis, St. Paul & Twin Cities Suburbs.
We lift and level sunken sidewalks, driveways, patios, steps, and garage aprons using polyurethane foam. Homeowners across the Twin Cities choose Benchmark to fix settled concrete without the cost and mess of replacement.
Why concrete settles in Minnesota
Concrete often settles in Minnesota because of freeze-thaw cycles, soil washout, poor compaction, and water collecting near slabs. Over time, those conditions create empty space below the concrete, which causes sidewalks, driveways, patios, and steps to sink or shift.
What we raise and level
Benchmark raises and levels many of the most common concrete surfaces around Twin Cities homes.
Sidewalks
Driveways
Garage aprons
Patios
Steps
Walkways
Pool decks
Interior slabs
If your concrete is settled but still structurally intact, polyurethane raising may be the better repair option than replacement.
How polyurethane concrete raising works
Polyurethane concrete raising lifts settled slabs by filling the empty space below them and stabilizing the supporting soil.
We drill small holes in the concrete, usually about the size of a dime.
We inject polyurethane foam beneath the slab in liquid form.
The foam expands to fill voids, compact loose soil, and gently lift the concrete.
Once the slab is back in position, the foam cures quickly so the area can often be used again the same day.
Why homeowners choose polyurethane foam over replacement
Polyurethane concrete raising offers several advantages when the slab is still in good enough condition to save.
Smaller holes for a cleaner-looking repair.
Fast cure time, so the area can often be used right away.
Lightweight material that helps reduce added pressure on the soil below.
Durable, moisture-resistant repair designed to last for years.
Lower cost than full replacement in many situations.
Less mess and less disruption to your yard, driveway, or walkway.
When concrete raising makes sense
Concrete raising works best when the slab is settled but still intact. If the concrete is badly broken, crumbling, or structurally damaged, replacement may be the better option.
Good candidate: sunken but solid concrete
Maybe not a fit: severely cracked or broken slabs
Best next step: get a professional evaluation and quote
Concrete raising FAQs
What is concrete polyjacking?
Concrete polyjacking is a method of lifting and leveling sunken concrete slabs by injecting expanding polyurethane foam beneath them. The foam fills voids, compacts the soil, and raises the slab back into place.
How does polyjacking work?
Small holes are drilled through the slab, and polyurethane foam is injected below it. As the foam expands and hardens, it lifts the concrete and helps stabilize the soil underneath.
What are the advantages of polyjacking over mudjacking?
Polyjacking uses smaller holes, cures faster, adds less weight to the soil, and offers a durable, moisture-resistant repair. It is also a cleaner process with less disruption around the slab.
How long does polyjacking last?
Properly completed polyurethane concrete raising can last 20 years or more, and in many cases it can last as long as the remaining life of the concrete.
What types of concrete surfaces can be polyjacked?
Polyjacking works for many residential surfaces, including driveways, sidewalks, patios, walkways, pool decks, and some interior slabs.
How much does polyjacking cost?
Polyurethane concrete lifting typically ranges from $5 to $15 per square foot. Final cost depends on the size of the area, the amount of settlement, and site conditions
Get a free concrete raising quote
If your sidewalk, driveway, patio, or steps have settled, Benchmark can help you find out whether lifting is the right repair. We serve homeowners across Minneapolis, St. Paul, and surrounding Twin Cities suburbs.