Basement Systems
Foundation Supportworks

Greater Toronto's Basement Waterproofing & Foundation Repair Contractor

Serving Southern Ontario Including Markham, Mississauga, Brampton & Nearby

Clarke Basement Systems is the local specialist for waterproofing and structural repair services in the Toronto area. We repair wet and leaking basements and crawl spaces. We also fix settling and sunken foundations and concrete. We are a locally-owned and operated business that has been serving southern Ontario for over a decade. During that time our business 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. If you live in Toronto, Mississauga, Markham or nearby give us a call today at 1-416-221-9981 to schedule your no-obligation consultation and free quote.

Why Southern Ontario Homeowners Choose Us

Dedication to Customer Satisfaction

Transferrable Warranties on Waterproofing & Foundation Products

25+ Years of Experience

Exclusive, Patented Products

Homeowners facing flooded basements or sinking foundations need a contractor they can trust. They also need a company that knows what it's doing. It is our dedication to customer satisfaction and quality work that has made us Ontario's trusted experts for foundation repair and basement waterproofing.

We install tested, patented products in your home to permanently fix your leaking basement or sinking foundation. Our basement waterproofing system includes a lifetime transferable warranty, and our foundation and crawl space repair products come with 25-year transferable warranties. The servicemen who install these products are extensively trained in repair and waterproofing techniques. They are also trained on customer oriented service. This means our company gives complete written estimates, arrives on time, finishes on time, respects your home and answers all your questions.

We make homes drier and healthier

Our waterproofing solutions can solve water problems caused by a crack in the foundation, a failed sump pump, downspout runoff, a leaky water heater or washer hose and more. But at Clarke Basement Systems we do much more than help keep water out of your basement. We provide solutions to control humidity and reduce dampness in your basement or crawl space. By stopping water leaks and flooding and lowering humidity, we can rid your basement or crawl space of mold, mildew and musty odors. Our waterproofing and repair products work together to improve the overall health and comfort of your home.

Hundreds of Satisfied Greater Toronto Customers

more testimonials

After we waterproofed the basement or repaired the foundation of their home, our customers referred us to their friends. These continuous referrals have allowed our business to grow. With hundreds of satisfied homeowners to date we hope to service hundreds more in the future. If you need basement waterproofing, foundation repair, concrete leveling or crawl space repair in southern Ontario give us a call today! 1-416-221-9981

Clarke Basement Systems is the certified Basement Systems and Foundation Supportworks, Inc dealer in the Ontario area. We serve both residential and commercial customers in Mississauga, Toronto, Markham and surrounding areas.

Looking for a price? Get a no cost, no obligation free estimate.

our service area

We serve Ashburn and the nearby area

Our Locations:

Clarke Basement Systems
10638 Ninth Line
Markham, ON L6B1A8