Leaking or structural foundation cracks sealed from the inside — one visit, no excavation, backed by our transferable lifetime warranty.
Crack injection is a one-visit repair that seals foundation and concrete cracks from the inside, without excavation. Leaking or wet cracks are injected with expanding polyurethane to stop water permanently; structural cracks are injected with epoxy to restore the wall’s original strength. Concrete Crack Repair Pros performs both across Toronto and the GTA, backed by a transferable lifetime warranty.
Pricing reviewed regularly
Stressed about a crack? You want proof, not promises. Here’s ours.
Backed by the DryShield family — a quarter-century of GTA basements kept dry.
Injection repairs warrantied for life — and the warranty moves with the house when you sell.
Full commercial coverage on every job, every crew, every home.
Eligible contractor for City of Toronto, Peel & Halton basement-flooding subsidy programs.
Inspection, honest diagnosis, and an exact per-crack quote — free, no pressure.
Your price is confirmed in writing before any work starts — no hourly surprises.
Everything in this trade comes down to matching the material to the crack. The wrong one fails — usually the next storm.
A flexible resin that reacts with water and expands up to 20× its volume, chasing moisture through every hairline branch of the crack. Because it needs water to cure, it’s the right choice for actively leaking cracks — even during a storm.
A rigid, high-strength adhesive that bonds the two faces of the crack back together — cured epoxy is typically stronger than the surrounding concrete. The choice when an engineer wants the wall’s monolithic strength restored.
| Your situation | What you’re seeing | Recommended method | Typical repair time |
|---|---|---|---|
| Water in the basement after rain | Damp streak or drip line down the wall | Polyurethane injection | 1–2 hours |
| Crack leaks in spring thaw only | Seasonal moisture, efflorescence (white powder) | Polyurethane injection | 1–2 hours |
| Vertical shrinkage crack, dry | Hairline–3 mm, near windows/corners | Polyurethane or epoxy | 1–2 hours |
| Crack wider than 3 mm or growing | Measurable widening season over season | Epoxy + assessment | 2–4 hours |
| Horizontal or stair-step cracking | Often with inward bowing | Engineering assessment first | Assessment visit |
Times are typical for a single crack in an accessible poured-concrete wall; your written quote confirms scope.
One visit for most single cracks — here’s the whole process.
We inspect the crack, check moisture, identify your foundation type — written quote on the spot.
Crack face cleaned; injection ports set every 6–12″; surface sealed.
Resin pumped port-by-port from the bottom up until refusal — full-depth fill confirmed.
Ports removed; wall dressed flush and paintable the same day.
Transferable lifetime warranty certificate and repair records — useful at resale.
Tell us what you’re dealing with and get a planning estimate in seconds — based on our current published Ontario pricing. Your free on-site assessment confirms the exact number in writing.
How many cracks do you have?
Tie-rod holes leaking? (small round holes)
What kind of repair?
Basement
Enter your name and phone number to reveal your planning estimate.
Please enter your name and a valid phone number.
Planning estimate based on our current published pricing for accessible poured-concrete cracks (typically up to ~6–8 ft): polyurethane $750–$1,000 per crack · epoxy $850–$1,500 per crack · tie-rod holes $75–$150 each. HST and finished-basement access/restoration extra unless quoted. Volume pricing applies for 3+ cracks. Final price confirmed after a free inspection or photo review — this tool is not a quote.
The GTA sits on expansive clay soils that swell when saturated and shrink in drought, cycling pressure against foundation walls year after year. Add 40+ freeze–thaw cycles in a typical Toronto winter, spring melt loading the water table, and normal curing shrinkage — and vertical cracks are close to inevitable. That’s why injection, which permanently seals the crack while tolerating seasonal movement, is the standard repair here rather than repeated patching.
Crack injection repairs a cracked concrete wall by filling the crack through its full depth — not just the surface. Injection ports are set along the crack, the face is sealed, and repair resin is pumped in under controlled pressure until the crack is filled from the footing to the top of the wall.
Surface patches, hydraulic cement, and caulking fail because they only bridge the visible face of the crack; water and movement get behind them within a season or two. Full-depth injection is the method engineers specify for poured-concrete foundations because it addresses the entire crack, inside the wall.
Optional / quoted separately: drywall cut-out and restoration in finished basements, exterior membrane patching, multiple-crack pricing.
Injection is for poured-concrete foundations — the standard in most GTA homes built after roughly 1960. Block, stone, and brick foundations can’t be pressure-injected reliably; those need interior or exterior waterproofing approaches instead. We’ll tell you which you have at the assessment — and quote the right fix, not the one you called about.
As long as it’s:
Free written assessment · one-visit repair · no excavation · transferable lifetime warranty. We book a time window, inspect and quote on-site, and can usually complete the repair the same visit or within days.
