Southern Ontario's Basement Waterproofing & Foundation Repair Contractor

Serving Toronto, Markham, Mississauga & Nearby

Clarke Basement Systems repairs wet or leaking basements and crawlspaces. We also fix settling or 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 permanent, warranted solutions at affordable prices. We have become southern Ontario's trusted basement waterproofing and foundation repair company. If you live in Toronto, Mississauga, Markham or nearby give us a call today. 1-416-221-9981

Why Southern Ontario Homeowners Choose Us

Dedication to Customer Satisfaction

Written, Transferrable Warranties

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 and warranted products in your home to permanently fix your leaking basement or sinking foundation. 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.

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