📍 Serving Toronto & GTA | Licensed & Insured Contractor Call Now: 647-390-7801  |  Free Estimates
⭐ #1 Rated in Toronto, ON

Basement Waterproofing Toronto Experts

Stop leaks, mould, and foundation damage for good. Toronto's trusted waterproofing contractor — residential & commercial, fast response, free quotes.

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15+ YearsServing Toronto & GTA
4.9 / 5 Stars300+ Google Reviews
Licensed & InsuredFully Certified Contractor
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25-Year WarrantyOn All Waterproofing Work
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Fast ResponseSame-Week Quotes Available

Basement Waterproofing Services in Toronto

We offer a full range of waterproofing solutions for Toronto homeowners and businesses — from minor crack repairs to complete drainage system installations.

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Interior Waterproofing

We install interior drainage systems and sealants that intercept water before it reaches your living space. Ideal for Toronto homes with recurring basement flooding.

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Exterior Waterproofing

The most comprehensive solution — we excavate around your foundation, apply a waterproof membrane, and install drainage board to keep water away from your home entirely.

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Sump Pump Installation

We supply and install high-capacity sump pumps with battery backup — essential for Toronto's wet seasons. We also service and replace existing pumps.

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Foundation Crack Repair

Cracks in poured concrete or block foundations let water in and weaken your structure. We use epoxy and polyurethane injection to seal cracks permanently.

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Interior Drainage Systems

French drains and weeping tile systems installed beneath your basement floor channel water to the sump pit — keeping your basement dry year-round.

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Window Well Installation

Poorly sealed window wells are a common source of basement flooding in Toronto. We install properly graded wells with drainage to prevent water accumulation.

Toronto's Most Trusted Waterproofing Company

When it comes to protecting your home from water damage, you need a contractor who understands Toronto's unique climate, soil conditions, and building codes.

  • Toronto Freeze-Thaw Expertise

    Our solutions are engineered specifically for Toronto's harsh winters. We use materials rated for extreme freeze-thaw cycles so your waterproofing lasts decades, not years.

  • Fixed-Price, Written Quotes

    No hidden fees, no surprises. Every project starts with a detailed written estimate you approve before we touch a thing.

  • 25-Year Transferable Warranty

    Our waterproofing warranty stays with the property — a major asset if you ever sell your Toronto home.

  • Clean, Respectful Crews

    We protect your floors, clean up daily, and treat your home like our own. No mess left behind.

1,200+
Homes Waterproofed in Toronto
15+
Years Serving the GTA
4.9★
Average Google Rating
25yr
Transferable Warranty

Our Simple 4-Step Process

From first call to dry basement — here's what to expect when you work with us.

01

Free Inspection

A certified waterproofing specialist visits your Toronto property, identifies the water entry points, and assesses the scope.

02

Written Quote

You receive a clear, fixed-price written quote — no pressure, no hidden costs. We explain every line item.

03

Expert Installation

Our trained crew completes the work efficiently, respecting your home and keeping disruption to a minimum.

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Warranty & Walkthrough

We walk you through the completed work, answer all questions, and hand over your 25-year warranty documentation.

What Toronto Homeowners Say About Us

★★★★★

"After two flooded basements in one year, we finally called these guys. They installed an interior drainage system and a sump pump. Not a drop of water since — and that was three winters ago."

Michael T. — North York, Toronto
★★★★★

"Very professional from start to finish. The quote was detailed and they stuck to it exactly. The crew was clean and finished ahead of schedule. Highly recommend for anyone in the GTA."

Sandra K. — Etobicoke, Toronto
★★★★★

"We had a major crack in our poured concrete foundation. They repaired it with epoxy injection — quick, clean, and the 25-year warranty gave us real peace of mind. Worth every penny."

David & Maria L. — Scarborough, Toronto

Basement Waterproofing Across Toronto & GTA

We provide expert basement waterproofing services throughout Toronto and the surrounding Greater Toronto Area. Our crews are local — fast response times, no travel surcharges.

Toronto
North York
Scarborough
Etobicoke
East York
Mississauga
Vaughan
Markham
Richmond Hill
Brampton
Oakville
Pickering
Ajax
Whitby

Frequently Asked Questions

Common questions from Toronto homeowners about basement waterproofing.

Common signs include water stains on walls or floors, a musty or damp smell, visible mould or mildew, efflorescence (white chalky deposits), cracks in foundation walls, or standing water after heavy rain. If you notice any of these in your Toronto home, it's worth getting a free inspection before the problem worsens.
Cost varies depending on the method and scope. Interior drainage systems typically range from $5,000–$12,000 for an average Toronto home. Exterior waterproofing costs more due to excavation, typically $15,000–$30,000+. Crack injection repairs can be as low as $500–$1,500. We provide free written quotes so you know the exact price before any work begins.
Exterior waterproofing addresses the problem at the source — a waterproof membrane is applied directly to the outside of your foundation walls after excavation. Interior waterproofing manages water that does enter, channeling it to a sump pump. Both are effective; the right choice depends on your situation, budget, and the source of the water intrusion.
Interior waterproofing typically does not require a permit in Toronto. Exterior waterproofing that involves significant excavation near the foundation may require one. We handle all permit inquiries and coordinate with the City of Toronto on your behalf to keep the project compliant and on schedule.
Most interior waterproofing projects in Toronto take 1–3 days. Crack injection repairs can often be done in a single day. Full exterior waterproofing projects typically take 3–7 days depending on the size of the home and site access. We provide a project schedule upfront so you can plan accordingly.
We offer a 25-year transferable warranty on all our waterproofing systems. This warranty stays with the property — if you sell your Toronto home, the new owners inherit the coverage. We stand behind our work completely and will return to address any warranty issues at no additional charge.

Ready for a Dry Basement?

Get a free, no-obligation inspection from Toronto's top-rated waterproofing contractor.

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