The Basement Waterproofing Experts

Trusted by Canadians for Decades

With over 25 years of industry experience Waterproofing service offers the highest standard in waterproofing technology, methods and materials for your interior & exterior waterproofing, concrete injection-sealing and foundation crack repair.

  • Completed 100,000+(Ln-ft)Customers
  • Lifetime Guarantee

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    Why Choose Waterproofing Service®?

    We’re Fully Insured

    Waterproofing Service® offers standard Liability Coverage of $2,000,000 (CDN) for most Residential & Commercial customers with additional coverage available if required.

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    Experience & Expertise

    With over 25 years of industry experience we offer the highest standards. Waterproofing Service® is also an IICRC Certified Company.

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    25 Year Warranty

    Residential, Multi-Unit, Commercial and Industrial basement waterproofing solutions carry a minimum 25 Year Transferable Warranty.

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    Instant Online Quotes

    Pick your problem, enter your information, and receive an instant online cost estimate.
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    Who we are:

    Waterproofing Service, Canada’s largest waterproofing company, is a 100% Canadian owned and operated. The Waterproofing Service team prides itself on great workmanship and providing excellent customer service. Our unconditional commitment to customer satisfaction has proven to be a successful policy and is the reason we are Ontario’s leading foundation specialists.


    We utilize industry leading techniques and technology to ensure the integrity of our work. Our services include foundation waterproofing, concrete crack injections, mold remediation and crawl space containment. We have a range of experience working on residential projects, historic buildings and some of the largest corporate projects in Ontario including Pearson International Airport, Scotia Bank and Wal-Mart to name a few.

    • We offer the latest and most advanced waterproofing solutions
    • Over 25 years of experience servicing homeowners in Toronto and the GTA
    • Canadian owned & operated
    • We offer free, simple online quotes
    • We’re fully insured
    • Rest easy knowing we provide a guaranteed, transferrable 25-year warranty on our work

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