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Concrete Repair in Toronto & the GTA

Crack, joint and spall repair and levelling that provides a sound substrate, whether the floor is being coated or repaired as a standalone project.

Get a Free Quote Call (437) 239-1165
Concrete repair

Repair First, Then Coat

A Sound Substrate for Coatings

A coating is only as strong as the concrete beneath it. Proper repair is essential to long-term performance.

Crack and Joint Repair

Repair materials are matched to the crack type, movement and traffic conditions.

Spall and Pit Repair

Damaged and flaking areas are cut back and rebuilt to a smooth, level surface.

Levelling

Low spots and uneven areas are levelled so floors drain properly and equipment rolls smoothly.

Root-Cause Assessment

We assess why the concrete failed, including moisture and structural movement.

Single-Source Contractor

Repair and coating completed by the same team, eliminating coordination gaps between trades.

Why Concrete Needs Repair Before Coating

Concrete cracks, chips and wears over time. Freeze-thaw cycles, heavy loads, moisture, shrinkage and age all contribute. When a coating is applied over damaged concrete without repair, the damage telegraphs through, the coating can crack and delaminate, and the work must be repeated. For this reason, every Supreme Epoxy project begins with a detailed slab assessment, and repair is a standard part of our preparation. Request a free estimate to discuss your project.

Repairs We Carry Out

  • Crack repair: routing and filling cracks with materials suited to the type of movement
  • Joint repair: clearing and filling control and saw-cut joints, including forklift-rated filler in warehouses
  • Spall and pit repair: removing loose material and patching with repair mortar
  • Surface levelling: self-levelling or patch compounds for low spots and uneven areas
  • Surface preparation: grinding or shot blasting to remove laitance, coatings and contamination
Cracked concrete floor with a joint in need of fillingCracks and jointsConcrete warehouse floor with marked lines and worn jointsWorn joints and floorsLarge smooth concrete slab prepared for coatingSlab preparation

Understanding the Cause

We try to work out why the damage happened. Hairline shrinkage cracks behave differently from cracks caused by settlement or heavy loads. Moisture rising through the slab can lift coatings and cause spalling. Deicing salt, chemicals and impact can all break down the surface. Knowing the cause helps us choose the right repair and tell you honestly whether coating is the right next step.

Structural issues. If we see signs of a structural problem, such as large movement, major settlement or exposed reinforcing, we tell you and recommend a structural engineer. Our repairs address surface and joint conditions.

Repair and Coating Together

Most of our repair work is part of a coating project: a garage floor, a warehouse, a basement or a parking structure. Because the same crew does both, repair materials and coatings are chosen to work together. If your existing coating has already failed, see our epoxy floor repair service.

Timeline and Pricing Factors

Repair scope varies from a few cracks to a whole slab, so we quote in writing after a free site visit. The main factors are:

  • The length and type of cracks and joints
  • The area of spalled or damaged concrete
  • The amount of levelling needed
  • Access, working conditions and whether repair is part of a coating project

See our epoxy flooring cost guide for how repairs fit into a coating project.

How it works

How Concrete Repair Works

Inspection

We examine the slab, map cracks, joints and damage and test for moisture where needed.

Open Up Damaged Areas

Cracks are routed and loose, spalled concrete is cut back to sound material.

Fill and Patch

Cracks, joints and pits are filled with the right repair material for the movement and load.

Level and Smooth

Low spots are levelled and patches are ground flush with the surrounding slab.

Prime or Coat

The repaired slab is primed and ready for coating, or sealed if no coating is planned.

Client testimonials

What Our Clients Say

★★★★★

"I recently had epoxy flooring installed in my garage and couldn't be happier with the results. The team was incredibly polite, professional, and respectful of my home. The finish is smooth, clean, and exactly what I envisioned."

S
Susannah GreenGarage floor · Google review
★★★★★

"Beautiful job. Impressed with the quality of work, explanation of the process, great communication, and they left the job site very clean."

M
Marc PedneaultGoogle review
★★★★★

"I am ecstatic about the double garage floor restoration completed at my Oakville home. They exceeded my expectations from beginning to end of the one day project. Meticulous and fully competitive with other quotes."

J
Jo Ann MorelloOakville · Google review
Questions

Concrete Repair FAQ

Can you repair cracks in my concrete floor?
Yes. We rout and fill cracks with materials suited to the movement and use. If a crack is still actively moving, we explain how it may behave and how to manage it.
Why do I need to repair concrete before applying epoxy?
A coating cannot be stronger than the concrete beneath it. Cracks, pits and spalls telegraph through the coating or cause it to fail, so repair is part of good preparation.
Can you level an uneven floor?
Yes. We use levelling and patch compounds to fix low spots and uneven areas so the floor drains and equipment rolls properly.
What if the concrete has a structural problem?
We are not engineers. If we see signs of a structural issue, we tell you and recommend a structural engineer before any coating work.
Do you repair concrete without coating it?
Yes. Repair and sealing can be done on their own, though most clients choose to coat after repair for long-term protection.
Do you offer free estimates?
Yes. We visit the site, measure the area, check the concrete and give you a written quote with no obligation.
Service areas

Concrete Repair Across the GTA

Supreme Epoxy completes projects across Toronto and the Greater Toronto Area.

MississaugaBramptonOakvilleVaughanMarkhamRichmond HillScarboroughEtobicokeAll areas

Request a Site Assessment

Book a free site visit and get a written scope and quote for repair and coating.

Get My Free Quote
Call us(437) 239-1165 Emailinfo@supremeepoxy.ca
ServicingToronto & the GTA