416-879-4593 cornerstone@live.ca

Basement Waterproofing & Foundation Repair in Toronto

Including Basement Lowering/Underpinning, Heated Basement Floors, Walkouts, Basement Windows, Concrete Floors and More

Interior & Exterior Waterproofing

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Foundation Repair

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Satisfaction Guaranteed

Specializing in waterproofing and foundation repair, Cornerstone Waterproofing Inc. is a fully licensed 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!

Testimonials

“Cornerstone Waterproofing delivers 110%, Grade AA work!”
“The finished product was beyond our expectations.”
“Top quality workmanship & peace of mind — that’s what Saverio & his crew deliver!”

Read more *10STAR* reviews on Homestars