Foundation Cracks Sealed
Permanently
Epoxy and polyurethane crack injection for leaking basements across the Niagara Region. No digging, fixed from the inside, backed by a written warranty.
- Fully Insured & Local
- Free No-Obligation Estimates
- No-Dig Interior Repairs
Get Your Free Estimate
We Solve Real Foundation Problems
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Water seeping through a crack in your basement wall?
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Worried about hidden costs or getting overcharged?
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Not sure if the crack is cosmetic or structural?
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Polyurethane injection seals leaking cracks, even while they are wet.
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Free itemized written estimate. No surprises, no pressure.
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Honest inspections give you a straight answer with no upselling.
Foundation Repair Done Right
From a single leaking crack to a chronically wet basement, we diagnose the cause and fix it at the source.
Crack Injection
Epoxy and polyurethane injection that seals foundation cracks from the inside, permanently.
Crack Injection Services
Foundation Crack Repair
Assessment and repair of vertical, diagonal and stair-step foundation cracks in poured and block walls.
Foundation Crack Repair Services
Wet Basement Repair
Find and fix the source of basement water, from leaking cracks to failed tie rods and pipe penetrations.
Wet Basement Repair Services
Basement Waterproofing
Interior waterproofing solutions that keep Niagara basements dry through spring thaw and heavy rain.
Basement Waterproofing ServicesHow It Works
Free Crack Inspection
We inspect the crack from inside the basement, check for signs of movement or structural concern, and confirm whether injection is the right repair before anything is booked.
Crack Preparation
The crack is cleaned along its full length, surface ports are set at regular intervals, and the face of the crack is sealed with epoxy paste so the injection material stays inside the wall.
Injection
Epoxy or polyurethane is injected port by port from the bottom up until the crack is filled through the full thickness of the wall, not just at the surface.
Verification & Warranty
We confirm the crack is filled end to end, remove the ports, and walk you through the finished repair. Your injection is backed by a written warranty against leaking.
What Our Customers Say
Real customer reviews will appear here once Crack Injection Niagara has verified them. We never publish fabricated testimonials.
Why Niagara Homeowners Choose Us
Specialized equipment, commercial-grade materials, and honest assessments from a local crew.
Niagara Specialists
We repair Niagara foundations every day and know how local clay soils, frost cycles and spring thaw stress poured concrete walls.
Commercial-Grade Materials
We inject professional epoxy and polyurethane systems, not hardware-store patch kits, so the repair fills the crack through the full wall.
Transparent Pricing
You get a firm written price after the free inspection, before any work begins. No hidden fees and no surprise extras.
Fully Insured
Complete liability coverage protects your property and gives you peace of mind while we work in your home.
No-Dig Interior Repair
Injection is done from inside the basement. No excavation, no wrecked landscaping, and most repairs are finished in a single visit.
Written Warranty
Every injection is backed by a written warranty against leaking, so your repair is protected long after we leave.
Serving the Entire Niagara Region
From St. Catharines to Fort Erie, we repair foundation cracks and wet basements across all Niagara communities.
Frequently Asked Questions
Answers to the most common questions Niagara homeowners ask about crack injection.
What is crack injection?
Crack injection is a repair method that fills a foundation crack through its full depth with epoxy or polyurethane resin. Ports are set along the crack, the surface is sealed, and the material is injected from the bottom up until the crack is filled from the inside face of the wall to the outside soil. Done properly, it is a permanent repair for poured concrete foundations.
Should I use epoxy or polyurethane injection?
Polyurethane is the usual choice for leaking cracks because it reacts with water and expands to seal the full crack, even when it is actively wet. Epoxy is used when the crack needs structural bonding, since cured epoxy is stronger than the surrounding concrete. We assess each crack and recommend the right material for the situation.
How much does crack injection cost in Ontario?
Most single foundation crack injections in Ontario fall somewhere in a broad range of roughly $50 to $650 per crack depending on length, wall thickness, access and whether the crack is leaking. We confirm an exact price after a free inspection, before any work starts.
Can you inject a crack that is actively leaking?
Yes. Polyurethane injection is designed for wet, actively leaking cracks. The resin reacts with the water in the crack and expands to fill it. You do not need to wait for a dry spell to have a leaking crack repaired.
Do you serve my part of the Niagara Region?
We serve St. Catharines, Niagara Falls, Welland, Fort Erie and Thorold, along with the surrounding Niagara Region. If you are nearby but not in one of those cities, call us and we will let you know right away.
How long does a crack injection repair take?
A typical single-crack injection takes about one to two hours from setup to cleanup. The repair is done from inside the basement, so there is no digging and no landscaping damage, and your basement is usable the same day.