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Foundation Repair • Basement Waterproofing
Crawl Space Repair • Concrete Leveling

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HomeStars Best of Award 2023 Baeumler Approved

Our Solutions

Cracked foundation
Foundation Repair
A wet basement
Basement Waterproofing
A healthy crawl space
Crawl Space Repair
A sinking sidewalk
Concrete Leveling
Sump pump installed in basement
Sump Pump Installation
Mould in an attic
Home Mould
Basement being waterproofed

Why Homeowners Choose Us

We believe the customer experience can and should be remarkable. Our goal is to provide you with the most reliable solutions and peace of mind about your home. At the time of your free inspection, you will know exactly what the problem is, exactly how we will fix it and exactly how much it will cost.


The professionals at Clarke Basement Systems are known for their highly effective basement waterproofing, crawl space waterproofing, and crawl space encapsulation services. We offer a transferable lifetime dry basement warranty, more than 32 patented products that are specifically designed for your Toronto basement, and more. Our sump pump systems include the best cast-iron sump pumps and the longest-lasting battery backup pumps in the industry. Clarke Basement Systems has the best solutions for your leaky basement or crawl space.

Industry Leaders Exclusive patented, proven products
Reliable Service Transferable warranties for waterproofing systems
Trustworthy Crew Trained, experienced contractors
Customer Support Savings of up to 50% over other methods

Exceptional Quality and Service for Over 21 years

Clarke Basement Systems is the local specialist for waterproofing and foundation repair in the Toronto area. Although we're the waterproofing specialists, we do much more than just fix and prevent wet basements. We also fix basements that are damp and musty, repair foundation cracks and basement leaks, and repair crawl spaces and install dehumidifiers. Do you have a settling foundation or cracked, sinking concrete? We can help with that too.

We are a locally-owned and operated business that has been serving southern Ontario for over a decade. During that time our company has grown substantially because we provide warrantied solutions that are proven to last. We have become one of southern Ontario's most trusted basement waterproofing and foundation repair companies.

We provide free, no-obligation estimates for waterproofing and structural repair jobs in Toronto, York, Markham, Mississauga, and throughout Ontario. Call us at 1-888-820-4831 or click below to request your free quote today.

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Proudly Serving Greater Toronto including - Mississauga, Markham, Toronto & nearby

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