Cornerstone Waterproofing is a fully licensed and insured company that specializes in foundation repair and waterproofing in Toronto and all neighbourhoods in the Greater Toronto Area. Family owned and operated, we take great pride in and stand behind our work to ensure a satisfying and pleasurable relationship with our customers. We strive to build solid connections with homeowners, often resulting in positive referrals and references. Cornerstone Waterproofing has waterproofed hundreds of homes, stabilized foundations, lowered basements, installed basement walk-outs, fixed cracks and crumbles, and so much more. As waterproofing and foundation repair specialists, we help make houses safer and more livable. We guarantee our work and back up all of our waterproofing with a 20 year transferable warranty!