A sunken or uneven concrete slab doesn’t always mean starting over. Brosco Concrete raises and levels driveways, patios, walkways, pool decks, steps, and other concrete slabs using polyurethane foam injected beneath the existing concrete. The expanding foam fills voids, restores support, and carefully lifts the slab back toward its proper position.
Most residential projects can be completed in a single visit with minimal disruption, and the area can often be used again the same day, making concrete raising and levelling a fast, cost-effective alternative to full replacement.
How Concrete Raising & Levelling Works
On-Site Assessment
We assess the settled slab and surrounding conditions to determine if it can be safely and effectively raised and levelled.
Small Injection Holes
Small 5/8 inch holes are drilled through the affected slab to create access points for the polyurethane foam.
Polyurethane Foam Injection
Polyurethane foam is injected beneath the concrete to fill voids, stabilize the base, and carefully lift the slab toward its proper position.
Patch & Cleanup
Once the slab is levelled, the injection holes are patched and the work area is cleaned up.
Same-Day Use
Most residential projects are completed in just a few hours, with the levelled concrete ready for use the same day.
Benefits of Polyurethane Levelling
5-Year Warranty
Backed by our 5-year concrete raising and levelling warranty.
Smaller Injection Holes
Uses small 5/8 inch injection points rather than the larger holes used for traditional mudjacking.
Lightweight Material
Polyurethane foam adds very little additional weight beneath the slab.
Moisture Resistant
The foam is resistant to water and moisture beneath the concrete.
Interior & Exterior Applications
Suitable for many poured concrete surfaces, including driveways, patios, walkways, garage floors, and interior slabs.
Minimal Disruption
No full tear-out, less mess, and minimal disruption to surrounding landscaping.
Fast Return to Use
Most residential projects are completed in a few hours, with the surface ready for use the same day.
Cost-Effective Alternative
Typically around half the cost of full concrete replacement when the existing slab is a good candidate for lifting.
Why Concrete Settles & Sinks
- Water erosion beneath the slab
- Poor drainage around the property
- Freeze-thaw cycles
- Soil settlement over time
- Tree roots and ground movement
- Poorly compacted base material
- Voids beneath the concrete
- Soil disturbance from animals or insects
Polyurethane foam fills voids beneath the slab and helps restore support to the settled concrete.
What We Can Lift
- Driveways
- Patios
- Pool decks
- Walkways & sidewalks
- Concrete steps
- Garage floors
- Basement floors
- Other poured concrete slabs
Common Areas We Can Lift & Level
Levelling Results
Drag the handle to compare. Both slabs were lifted with polyurethane foam rather than replaced.
Raising & Levelling Questions, Answered
How is polyurethane levelling different from mudjacking?
Polyurethane levelling uses lightweight expanding foam rather than a heavier cement-based slurry. The foam expands beneath the slab to fill voids, stabilize the area, and lift the concrete with smaller injection holes and a faster cure time.
Is raising & levelling cheaper than replacing concrete?
In many cases, yes. Concrete raising and levelling typically costs about half as much as full replacement, while avoiding the mess, demolition, and disruption of tearing out and repouring the slab. If the existing concrete is still in good condition, lifting it can be a practical and cost-effective option.
How long does the job take?
Most residential projects are completed in just a few hours, and the levelled concrete can be used again the same day.
What types of concrete can you lift?
We raise and level many types of concrete slabs, including driveways, walkways, patios, pool decks, steps, and other settled concrete surfaces. Our polyurethane lifting process does not work on precast concrete.
What areas do you service?
We provide concrete raising and levelling throughout London and communities across Southwestern Ontario, including St. Thomas, Strathroy, Woodstock, Sarnia, and Kitchener. Not sure if you are within our service area? Reach out, we may still be able to help.
Do you offer resurfacing or overlays?
No. Brosco Concrete does not offer concrete resurfacing, overlays or cosmetic concrete coatings. We specialize in new concrete installation, concrete raising and levelling, and concrete sealing services.