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2 of these contractors are based in Whitby; the others serve Whitby from towns including Toronto (38 km), Bowmanville (21 km) and Ajax (8 km).
3 open 24/7 · 16 open weekends · 18 rated 4.5+ · 4 show a licence
Data verified October 18, 2026
The 24 contractors listed for Whitby, ON work on wet basements, foundations and crawl spaces. Warranty claims, free inspection offers and hours come from each company's own website. Ask each one how the proposed repair holds up through frost, because that is where local systems fail.
22 of the 24 contractors on this page have a rating, from 4.0 to 5.0 across 1,492 reviews; 10 have 50 or more reviews and 18 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), responsiveness (87%) and quality (86%). The topics that come up most in reviews of the contractors on this page are "price" and "estimates". 3 are open around the clock; 16 are open on Saturdays and 11 on Sundays. 4 show a licence on their websites. Domain records put 10 websites of the contractors on this page at ten or more years old; the oldest dates from 1997. 4 offer emergency call-outs; 12 give free estimates; 8 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 23 of the contractors on this page; 19 publish a contact page and 13 list a public email. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
There are 24 listings for Whitby. Get more than one assessment before committing, because diagnoses here differ more than prices do, and one crew's interior system is another crew's regrading and downspout job. Compare what each one says is causing the water rather than the number at the bottom.
