416-879-4593 cornerstone@live.ca

Basement Waterproofing & Foundation Repair in Toronto

Providing professional, expert service and peace-of-mind to Toronto homeowners since 2004.

“Saverio and his team, Brian and Kyle, went above and beyond our expectations.”

- Susan

“The quality of the work was exceptional, and for such a big job, we felt in good and safe hands from day one.”

- Homestars

“Saverio and this team did a fantastic job. He came highly recommended and truly lived up to his reputation.”

- Sherry

Interior & Exterior Waterproofing


Foundation Repair


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Satisfaction Guaranteed

Specializing in waterproofing and foundation repair, Cornerstone Waterproofing Inc. is a fully licensed, experienced and insured company serving the Greater Toronto Area.

Family owned and operated, we strive to build trustworthy relationships with our customers, resulting in positive referrals and references. We take great pride in our work and offer a 20-year warranty on all waterproofing jobs to prove it.

What We Do

Basement Waterproofing & Foundation Repair
Basement Lowering & Underpinning
Heated Basement Floors
Basement Walkouts & Windows
Concrete Floors and More

Read more *10STAR* reviews on Homestars