Worried About Your

Sinking
Driveway?

Don’t let uneven concrete lower your property’s appeal or create safety risks. Our sidewalk and driveway lifting services in Markham and the surrounding York Region provide a fast, affordable solution. Reach out to Poly-Mor Canada today for a free quote!

Have questions about our warranty or services? Don’t hesitate to reach out — we’re here to help!

We Stand by Our Craftsmanship With a 3 Year Warranty!

At Poly-Mor Canada, we back our work with strong warranty protection. All residential concrete lifting and leveling services in Markham come with a 3-Year Warranty. If your project includes crack sealing, we extend that warranty to 5 Years — giving you added peace of mind.

Request a Quote Today!

Sidewalk & Driveway Lifting Solutions in Markham

With more than 25 years of trusted service, Poly-Mor Canada is a go-to provider for concrete lifting across the country. In Markham, our team uses high-density polyurethane foam to lift and stabilize sunken concrete slabs by injecting it through small 5/8″ holes with accuracy and control.

This process fills voids beneath the concrete, restores surface alignment, and helps prevent future movement by sealing out moisture — a key benefit in Markham’s variable soil and weather conditions.

We deliver a reliable, long-lasting solution to restore your driveway, patio, or walkway — all with minimal mess or downtime.

We Stand by Our Craftsmanship With a 3 Year Warranty!

At Poly-Mor Canada, we back our work with strong warranty protection. All residential concrete lifting and leveling services in Markham come with a 3-Year Warranty. If your project includes crack sealing, we extend that warranty to 5 Years — giving you added peace of mind.

Sidewalk & Driveway Lifting Solutions in Markham

With more than 25 years of trusted service, Poly-Mor Canada is a go-to provider for concrete lifting across the country. In Markham, our team uses high-density polyurethane foam to lift and stabilize sunken concrete slabs by injecting it through small 5/8″ holes with accuracy and control.

This process fills voids beneath the concrete, restores surface alignment, and helps prevent future movement by sealing out moisture — a key benefit in Markham’s variable soil and weather conditions.

We deliver a reliable, long-lasting solution to restore your driveway, patio, or walkway — all with minimal mess or downtime.

Request a Quote Today!

Our Concrete Lifting Process

  1. Precision Drilling: We drill 5/8″ holes in key locations for optimal foam coverage.
  2. Foam Injection: Polyurethane resin is injected under the slab, expanding to fill gaps and gently raise the concrete.
  3. Final Adjustments: Once level, ports are removed and holes patched to blend with the surface.
  4. Immediate Use: Your driveway is ready to use as soon as the process is complete.

Why Driveway Lifting Is Often Needed in Markham

Many homes in Markham are built on fill soil that shifts over time. Combined with seasonal freeze-thaw cycles and poor drainage, this movement often causes driveways and sidewalks to sink, tilt, or crack.

Without proper ground stabilization, concrete surfaces can quickly become uneven or unsafe — especially under the pressure of everyday use and harsh Canadian weather.

Professional concrete lifting helps correct these issues early, saving homeowners from more serious repairs later.

Sunken slabs can also be a warning sign of deeper issues like erosion or water damage. If ignored, you may face wider cracks, misalignment, or full slab failure. By lifting the concrete early, you improve drainage and prevent further wear — protecting both safety and appearance.

Our polyurethane injection method is a clean, fast, and durable solution that avoids the cost and disruption of a full concrete replacement.

What Causes Sidewalks & Driveways to Sink?

Concrete surfaces tend to sink due to a combination of environmental conditions and construction-related factors. One of the most common is soil erosion caused by poor water drainage. When water builds up or flows near the slab, it removes the base material underneath, creating voids that lead to settling.

In Markham, freeze-thaw cycles are another leading cause. As water under the slab freezes, it expands and pushes the concrete upward. When it melts, it leaves behind gaps that weaken support and cause sinking.

Poor soil compaction during initial construction also plays a role. If the subgrade wasn’t tightly packed, it may compress over time under the weight of vehicles and changing weather.

Tree root growth can disturb the soil below or push directly against the slab, leading to cracking or lifting.

Heavy use, nearby construction, and aging materials further accelerate deterioration. Over time, this results in sunken or uneven concrete that requires professional attention to restore stability and curb appeal.

Frequently Asked Questions

Poly-Mor Canada specializes in geotechnical polyurethane foam solutions for concrete lifting, soil stabilization, void filling, and leak sealing. Our innovative technology provides a cost-effective and long-lasting alternative to traditional methods like mudjacking and concrete replacement.

Our polyurethane foam is injected beneath the surface through small, strategically placed holes. The expanding foam fills voids, stabilizes soil, and gently lifts settled concrete. It cures within minutes, providing a strong and durable solution with minimal disruption.

Polyurethane foam is lightweight, fast-curing, and water-resistant. Unlike traditional methods, it does not add excessive weight to the soil, minimizing future settling. It also requires smaller drill holes, making it a cleaner and less invasive process.

Yes! Our polyurethane foam is eco-friendly, non-toxic, and does not leach harmful chemicals into the ground. It is a safe and sustainable solution for both residential and commercial applications.

The cost of polyurethane injection varies based on factors such as the size of the area, the extent of settling, and site conditions. Homeowners could pay as little as 15% – 25% the cost of removing and replacing the concrete. While polyurethane lifting is almost always more affordable than full concrete replacement, we recommend contacting us for a free assessment and quote to determine the exact cost for your project.

Most projects can be completed within a few hours. The polyurethane cures within 15-30 minutes, allowing the repaired area to be used almost immediately after the work is finished.