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Waterproof Ontario — Basement Waterproofing & Foundation Contractors

Find licensed basement waterproofing and foundation contractors across Ontario: interior and exterior waterproofing, sump pumps, drainage, weeping tile, crack repair, and leak fixes. Browse our directory, read guides, compare contractors, and request free estimates.

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Ontario home illustrating basement waterproofing, foundation repair, and drainage — Waterproof Ontario.

Expert Resources & Basement Waterproofing Guides

Explore our collection of articles, guides, and solutions to help you understand and address common basement waterproofing challenges.

Waterproofing Services

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Causes of Damage

Learn what causes basement leaks

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Ontario Rebates & Discounts

Discover available rebates for sump pumps, backwater valves, and other basement flooding protection measures in your municipality.

Service Areas Across Ontario

Find waterproofing contractors in your city. We serve Toronto, Mississauga, Hamilton, Ottawa, and 50+ other Ontario communities.

Spring Thaw Basement Prep Checklist

A printable checklist for Ontario homeowners: gutters, grading, sump pumps, and early leak signs before spring runoff peaks.

Resources & guides

Practical articles on waterproofing, foundations, and moisture—written for Ontario homeowners.