Concrete Crack Injection Toronto

CRACK INJECTION

We add value and charm to your home with our quality workmanship. Repairs are performed efficiently and at a reasonable cost. All work we perform is long-lasting. We go the extra mile to make your home look as good as possible for as long as possible.

At Concrete Crack & Foundation Repair, we ensure full concrete crack injection to fill the crack, from front to back, with epoxy or polyurethane. For basement walls, low-pressure injection is the best way to ensure that the crack is completely filled. We also help to fill cracks in concrete floors and ceilings.

Add value and charm to your home with your Concrete Crack Specialist.

What sets us apart in our trade is plain simple. We pride ourselves on a superior customer experience. Our concrete care injection services help you to avoid the expensive costs of structural repairs and reduce operational downtime. They can be used for all types of leak-sealing applications in concrete, masonry and natural stone structures and are able to form a new permanent watertight seal. Additionally, they can be used at any time from initial construction or to extend the service life of an existing foundation.

We provide our clients with custom-designed concrete crack injection solutions at highly affordable prices. At Concrete Crack & Foundation Repair, our expertly trained technicians use the latest techniques to add both value and visual appeal to your property. Our proven process ensures a great look, durability and long-lasting quality.

Your dependable Toronto Crack Injection Professionals

At Concrete Repair, it is our privilege to serve you. We listen to your needs and provide you with tailor-made solutions. We deliver high quality services and our projects are durable, long-lasting, low maintenance and beautiful.

Across Toronto and the GTA, we continue to serve thousands of valued clients and generate long-term happy customers. Your satisfactions is our ultimate goal.

What is crack injection, and why does it work?

Crack injection concrete is a professional process that drives a liquid resin deep into foundation and basement cracks, walls, and slabs, sealing the void from the inside out. After we scrub the surface with a wire brush and vacuum all the dust, we attach injection ports every 20 cm along the crack. A low-surface-tension epoxy or polyurethane is mixed in a dual-cartridge tube; the standard caulking tool (or glue gun–style special dispensing tool) pushes the material through the ports, forcing the resin to penetrate fine fissures and microscopic voids.

Because the resin has low viscosity and non-shrink material properties, it flows around corners and under rebar, filling even medium-width cracks that previously let in moisture, air, or mild chemicals. As the liquid cures, it expands slightly, chemically bonds to the concrete walls, and stops leaking cracks in their tracks. The cured material becomes stronger than the original concrete, restoring structural capacity and protecting the rebar from corrosion. Whether you are dealing with Type I hairline fractures or wider basement cracks, crack injection creates an impermeable seal without breaking through the wall, making it the preferred “no-excavation” solution for homeowners who want excellent results and minimal mess.

Epoxy vs. Polyurethane: Which one is right for your home?

Feature	Epoxy Injection Crack Repair	Polyurethane Crack Injection
Viscosity	Low-surface-tension resin flows easily into hairline cracks and protects structural integrity.	Slightly higher viscosity but foams when it meets water, making it perfect for active leaks.
Bond Strength	Cures hard, forms a structural weld stronger than the concrete—ideal for load-bearing foundation crack repair.	Flexible foam tolerates minor slab movement without losing contact—best for dynamic or wet conditions.
Cure Time	Slower set lets resin penetrate deeply; reaches full strength in 24 hrs.	Rapid reaction fills voids quickly; initial set in minutes, full cure in a few hours.
Use Cases	Dry or slightly damp cracks, garage slabs, concrete walls needing structural gain, and rebar protection.	Actively leaking cracks, cold joints, masonry seams, and areas where slight expansion helps fill gaps.
Colour	Cured epoxy is clear to amber; it is easy to paint for a clean finish.	Finished polyurethane is light yellow foam; it can be trimmed and parged with hydraulic mortar.

Our technicians evaluate crack width, moisture, and movement, then choose the resin that will deliver excellent results—sometimes combining both in a hybrid strategy for complete protection.

Benefits of our concrete crack injection services

Stops Moisture Damage Fast: By injecting resin from the lowest port upward, we displace standing water and create a watertight barrier that blocks future seepage, radon, and light oil or mild chemicals.
Long-Lasting Repair: Our mixed adhesive cures into a solid, flexible mass that moves with seasonal expansion yet never pulls away, delivering complete crack-sealing performance for decades.
Works in Damp Conditions: The resin reacts with trace moisture, foaming to fill hidden voids; it remains effective even on basement cracks that feel damp to the touch.
Protects Reinforcing Steel: By sealing out oxygen and water, the injection material prevents rust, thereby protecting rebar and avoiding costly structural replacement down the road.
No Exterior Digging: All work is performed from the interior, so landscaping, decks, and driveways stay intact—ideal for tight urban Toronto lots.
Clean, Low-Odour Process: Our epoxy and polyurethane formulas are low in VOCs and cure a light amber or grey finish with no lingering solvent smell.
Complete Kits, Professional Tools: Each service truck carries a crack injection kit that includes dual-tube cartridges, static mixers, nozzles, hydraulic mortar for surface patching, and port caps to finish the job neatly.
>Guaranteed Results: Every injection repair is backed by a transferable warranty, giving homeowners and investors peace of mind that the crack will stay sealed.

Why do homeowners across Toronto trust us?

Industry-Leading Expertise: We deliver economical, practical solutions for residential and commercial foundations, earning a reputation as Toronto’s go-to concrete restoration specialists.
Proprietary Technology: We use exclusive crack-injection resins, drainage systems, and waterproof membranes developed in-house, giving clients access to innovations they can’t get anywhere else.
Master Waterproofers: Our seasoned crews are certified in epoxy injection, polyurethane foam, and full-basement drainage installations. They keep wet basements dry, no matter the size or age of the home.
Complete Interior Systems: From under-floor drainage channels to membrane-covered foundation walls, we handle every step excavation-free, and then refinish the slab with new concrete for a clean finish.
Transparent Process: You see photos, moisture readings, and pressure logs from inspection through final port removal, so you know the repair is complete and compliant with the Ontario Building Code.

Ready to stop leaks and lock in value? Book your free crack-injection concrete assessment today and discover our differences.

Frequently Asked Questions

What is concrete crack injection?

Concrete crack injection is a repair method where epoxy or polyurethane is injected into cracks to seal and fix them from the inside. This technique effectively stops leaks and restores strength to cracked concrete.

What’s the difference between epoxy and polyurethane injection?

Epoxy injection creates a rigid bond that adds structural strength, making it ideal for load-bearing cracks.
Polyurethane injection is flexible and excellent for sealing leaking cracks, especially in wet or shifting areas.

When should I use epoxy injection crack repair?

Epoxy injection should be used for dry, structural cracks found in foundation walls, load-bearing beams, or slabs. It helps restore the concrete’s original strength.

Can injection repair stop water from leaking into the basement?

Yes, polyurethane injection is widely used to stop water leaks in basement walls or floors. It expands inside the crack, filling gaps and preventing future water entry.

How long does crack injection last?

Professional crack injection can last 25 years or longer. High-quality polyurethane injections are designed to resist moisture, and are closed cell and flexible for movement to prevent seepage. Epoxy injections cure much stronger than concrete and are used more for stuctual purposes

Is crack injection better than patching from the surface?

Yes, injection is more effective because it fills the crack from the inside, ensuring a complete seal. Surface patching only covers the crack and may not stop leaks or restore strength.

How much does concrete crack injection cost in Canada?

Costs typically range from $500 to $1,500 depending on the crack’s size, length, and the material used (epoxy or polyurethane). Waterproofing or multiple crack repairs may increase the price.

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