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WaterproofingIndex

Best Basement Waterproofing & Drainage in Whitby

Last updated: By Below-Grade Records Desk

11 below-grade contractors are listed within 9 km of Whitby, compiled August 2026.

average Google rating 4.9★ · borough / region: Durham · deepest category: Sump Pumps & Backwater Valves (5 listed) · ordered by the WaterproofingIndex Score, not paid placement

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Which sump pump and backwater valve installers are listed for Whitby?

See all 5

5 sump pump and backwater valve installers are listed for Whitby, averaging 4.92★ over 963 Google reviews. Everest Drain & Plumbing: Whitby's Local Plumber holds the top position at 5★ from 5 reviews. Order comes from a published score out of 100: reviews, what a company states on its own site, and how complete its record is, never payment.

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Which basement waterproofing contractors are listed for Whitby?

3 basement waterproofing contractors are listed for Whitby, averaging 4.8★ over 42 Google reviews. RBZ Contracting holds the top position at 4.8★ from 19 reviews. Order comes from a published score out of 100: reviews, what a company states on its own site, and how complete its record is, never payment.

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Which basement walkout contractors are listed for Whitby?

2 basement walkout contractors are listed for Whitby, averaging 4.6★ over 20 Google reviews. MAAS Trust Concrete Inc | Construction Company in Whitby & Mississauga | Licensed Master Electrician & Plumber holds the top position at 5★ from 1 reviews. Order comes from a published score out of 100: reviews, what a company states on its own site, and how complete its record is, never payment.

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Which foundation repair contractors are listed for Whitby?

1 foundation repair contractors are listed for Whitby, averaging 4.6★ over 19 Google reviews. Duggans Waterproofing Inc holds the top position at 4.6★ from 19 reviews. Order comes from a published score out of 100: reviews, what a company states on its own site, and how complete its record is, never payment.

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Which weeping tile and drainage contractors are listed for Whitby?

1 weeping tile and drainage contractors are listed for Whitby, averaging 5★ over 97 Google reviews. Jetflo Drain & Waterproofing holds the top position at 5★ from 97 reviews. Order comes from a published score out of 100: reviews, what a company states on its own site, and how complete its record is, never payment.

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Which below-grade services are covered in Whitby?

One row per category WaterproofingIndex covers in Whitby: how many companies are listed, what they average on Google, and the GTA price range published for that service. The ranked list for each one follows underneath.

WaterproofingIndex dataset, August 2026. Ratings from public Google reviews.
CategoryListed prosAvg Google rating
Sump Pumps & Backwater Valves54.92★
Basement Waterproofing34.8★
Basement Walkouts & Entrances24.6★
Foundation Repair14.6★
Weeping Tile & Drainage15★

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Why are some companies missing from this page?

38 of the 384 companies here publish no street address, only a Google service-area centroid, and 4 of them share one such point. That is not an address, so none of them is placed in Whitby. Find them in the A-Z index, and ask which areas they cover.

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Which areas next door are covered?

Below-grade crews work across boundaries, and a company two neighbourhoods away is often on the same street the following week. These Greater Toronto Area areas next to Whitby have their own lists.

Waterproofing in Whitby: frequently asked questions

Who works on wet basements in Whitby?

WaterproofingIndex's August 2026 dataset holds 11 below-grade contractors covering Whitby, at an average Google rating of 4.9★. Sump Pumps & Backwater Valves is the deepest category here, with 5 listed. Get three itemised quotes before you commit to any of them.

Which below-grade service scores highest in Whitby?

Sump Pumps & Backwater Valves leads on rating: 4.9★ across 5 rated companies, ahead of every other category WaterproofingIndex covers in this area. The stars come from Google reviewers, and our order weighs how many of them there were.

What should a Whitby homeowner expect to pay for sump pump and backwater valve work?

Tornado Plumbing & Drains (Toronto) publishes $1,400 to $2,400 per installed system for primary sump pump installed in an existing pit across the GTA, before 13% HST. Depth and access are what move a Whitby quote inside that range. The sump pumps & backwater valves cost guide on WaterproofingIndex breaks out every line item with its source.