Wall crack, cove joint, window well or grading — we trace where the water actually enters, then fix the right thing. Diagnosis is free and in writing.
Basement leak repair starts with finding where the water actually enters: a foundation wall crack, the floor–wall (cove) joint, window wells, or surface grading. In Toronto homes, wall cracks are the most common source and are permanently sealed by injection in one visit; other sources need different fixes. An accurate diagnosis — free, in writing — is what prevents paying twice.
Pricing reviewed regularly
Most homeowners meet a basement leak as a puddle — and a puddle does not tell you its source. Water travels along footings, under slabs, and behind finishes before it shows itself. Fixing the wrong entry point is the most expensive mistake in this trade, so diagnosis comes first, every time.
If it is actively leaking now, photograph it before it dries — pictures of live water make diagnosis faster and more certain.
| What you observe | Most likely source | The right fix |
|---|---|---|
| Water streak or drip partway up the wall | Foundation wall crack | Polyurethane crack injection |
| Water at the floor–wall joint after storms | Cove joint / hydrostatic pressure under slab | Interior drainage system, not injection |
| Wet corner below a basement window | Window well drainage failure | Well drain/cover repair, grading |
| Damp patch behind finished wall, musty smell | Hidden wall crack or condensation | Inspection + moisture reading, then targeted fix |
| Water at a pipe or service penetration | Unsealed penetration | Localized injection/sealing |
| Broad dampness on walls, white deposits | Wicking through porous or aging concrete | Waterproofing approach, humidity control |
| Leaks only in spring melt or major storms | Any of the above, pressure-triggered | Diagnosis visit while symptoms show, if possible |
Wall crack injection — the permanent repair for the most common Toronto leak source. Full-depth polyurethane seal, one visit, no digging.
Interior water management — when water arrives at the cove joint or under the slab, the durable answer manages pressure: interior drainage to a sump, not a bead of caulk at the floor line. If that is your diagnosis, we say so in writing and make sure the right crew handles it.
Exterior repairs where they are warranted — excavation and membrane work earns its cost on block or stone foundations and failed exterior systems. We say so when that is the honest answer, and we tell you when it is not.
Small-source fixes — window wells, penetrations, grading corrections: cheap fixes that stop expensive symptoms, and exactly the kind of thing a source-first assessment catches.
Live symptoms speed diagnosis — photos work too.
We check every usual suspect, not just the obvious one.
Source by source, fix by fix, no bundled mystery pricing.
Crack injections usually same visit; drainage work scheduled promptly.
Documentation for your records and future resale.
The proof behind every diagnosis we write.
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.
GTA basements leak on a calendar: March–April melt saturates frozen-ground runoff into foundations; summer convective storms (the July 2013 and August 2024 events being the famous ones) overwhelm grading and window wells; late-fall rains find the cracks that summer drought opened. City programs exist because the problem is systemic — Toronto, Peel and Halton all run basement-flooding protection subsidies for eligible work. The practical takeaway: fix known entry points in dry weather, before the queue forms.
Injection repairs are priced per crack — see the cost page. Drainage and exterior work is quoted after diagnosis — publishing a number before knowing the source would be guessing, and we do not guess in writing. Crack-specific symptoms? See basement crack repair or foundation crack repair.
Source-first inspection · written per-item quote · injection often same visit · transferable warranty
Basement leaks often happen due to water pressure building up around your home. It is called hydrostatic pressure. When the soil gets too wet, water pushes against basement walls and finds weak spots to enter. Cracks in the foundation wall or basement floor are common entry points. Poor drainage, clogged gutters, and broken sump pumps can also lead to a wet basement. Leaky basement windows and missing moisture barriers make it worse. Sometimes, even small cracks in masonry walls or near dryer vents can allow water to enter. Regular inspections and good drainage systems help prevent these leaks from turning into severe damage.
Not sure if your basement is leaking? These common signs could mean water is getting in:
When it comes to basement leak repair, you need a waterproofing company that knows how to fix basement leaking problems right the first time. That’s where we come in. We have helped countless homeowners address issues such as leaking basements, wet walls, and cracked floors. Our team is trained to quickly locate the source of water leaks, whether it’s a basement foundation crack, a poorly functioning drainage system, or a broken sump pump.
We use trusted methods like interior waterproofing, exterior waterproofing, and sealing cracks with hydraulic cement. For long-term results, we install drainage systems and apply moisture barriers that keep your basement dry even during heavy rains.
Our work includes repairing cracks in concrete, fixing window wells, and sealing around leaky dryer vents. We even help with ventilation and lowering indoor humidity. Whether you have small cracks or a whole basement flooding issue, we offer the best solution based on your needs.
We provide clear basement waterproofing estimates and honest advice. Our crew is friendly, on time, and highly professional. We respect your house and make sure the job is done right.
If you’re tired of dealing with basement leaks, contact us. We’ll help your basement stay dry and safe for your family.
