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WaterproofingIndex

Basement Waterproofing Contractors in Don Mills, Ranked (2026)

Last updated: By Below-Grade Records Desk

10 basement waterproofing contractors cover the Don Mills area, compiled August 2026.

330 Google reviews · median 4.92★ · typical $50–$80 per linear ft (Project Landscaping (Ontario)) · 89% of rated companies at 4.8★ or above · scheduling: interior work year-round; exterior excavation typically April to November

Companies

Who does basement waterproofing in Don Mills?

August 2026 count for the Don Mills area: 10 basement waterproofing contractors, 4.92★ average on Google, 330 reviews in total. Half carry more than 18 Google reviews and half fewer. Full basement waterproofing cost guide.

Ranking

What decides the order on this page?

A Bayesian-adjusted Google rating orders these 10 basement waterproofing contractors, whose median review count is 18. Position is not for sale. How the score is built.

Rules

Permits and subsidies for basement waterproofing

Permit rules and subsidies do not change between Don Mills and the rest of the GTA, so they are answered once, on the basement waterproofing page.

Coverage

Nearby areas and related work in Don Mills