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

basement waterproofing

Basement Waterproofing

We have the most effective solutions for wet basements.

crawl space repair

Crawl Space Repair

We offer complete crawl space encapsulation & repair services.

sump pumps

Sump Pump Installation

Our sump pump systems are engineered to get water out.

foundation repair

Foundation Repair

We'll find the right solution for your foundation problems.

concrete leveling

Concrete Leveling

Quickly & effectively restore your cracked, sinking concrete!

home mold

Home Mold

Protect yourself by preventing mold growth before it begins!

Ontario's Proven Basement Waterproofing & Foundation Repair Contractor

Proudly Serving Vaughan, Markham, Mississauga, Toronto, & Nearby

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, Vaughan, Markham, Mississauga, and throughout Ontario. Call us at 1-844-225-6185 or click below to request your free quote today.

Why Southern Ontario Homeowners Choose Us

Dedication to Customer Satisfaction

Transferable Warranties on Waterproofing & Foundation Products

25+ Years of Experience in Waterproofing & Structural Repair

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.

Hundreds of Satisfied Greater Toronto Customers


our service area

We serve the following areas

Our Locations:

Clarke Basement Systems
12045 McCowan Rd
Stouffville, ON L4A 4C3

Clarke Basement Systems
7250 Keele St Store #209
Vaughan, ON L4k 1Z8
Clarke Basement Systems service area