416-879-4593 cornerstone@live.ca


Cornerstone Waterproofing Inc. can help you turn your basement into a dry, mold-free, safe, usable space while increasing the value of your house. Specializing in basement waterproofing and foundation repair, we guarantee all of our waterproofing with a 20 year transferable warranty that stays with the house, even if the owner changes.

Whether your house is in need of structural repair, you would like to smooth out basement floors and walls or want to transform your basement into a more liveable space complete with more headroom, or even a separate entrance, Cornerstone Waterproofing Inc. can help.

Click on an image below for more information about the services we provide:

Interior & Exterior Waterproofing Basement Underpinning/Lowering
Basement Entrances, Walkouts & Windows Structural Foundation Repair
Concrete Floors & Drains including In Floor Heating