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WaterproofingIndex

Basement waterproofing and drainage in Leaside

Last updated: By Below-Grade Records Desk

14 below-grade contractors are listed within 3 km of Leaside, compiled August 2026.

average Google rating 4.9★ · borough / region: East York · deepest category: Basement Waterproofing (6 listed) · ordered on Google review data, not paid placement

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Which basement waterproofing contractors are listed for Leaside?

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6 basement waterproofing contractors are listed for Leaside, averaging 4.98★ over 174 Google reviews. True North Underpinning holds the top position at 5★ from 35 reviews. Order comes from review data and record completeness, never payment.

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Which foundation repair contractors are listed for Leaside?

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5 foundation repair contractors are listed for Leaside, averaging 4.98★ over 177 Google reviews. True North Underpinning holds the top position at 5★ from 35 reviews. Order comes from review data and record completeness, never payment.

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

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5 sump pump and backwater valve installers are listed for Leaside, averaging 4.92★ over 1,868 Google reviews. Leaky Basement holds the top position at 5★ from 12 reviews. Order comes from review data and record completeness, never payment.

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Which underpinning contractors are listed for Leaside?

3 underpinning contractors are listed for Leaside, averaging 5★ over 68 Google reviews. True North Underpinning holds the top position at 5★ from 35 reviews. Order comes from review data and record completeness, never payment.

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Which below-grade services are covered in Leaside?

One row per category WaterproofingIndex covers in Leaside: 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
Basement Waterproofing64.98★
Foundation Repair54.98★
Sump Pumps & Backwater Valves54.92★
Underpinning & Basement Lowering35★

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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 Leaside. 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 Leaside have their own lists.

Waterproofing in Leaside: frequently asked questions

Who works on wet basements in Leaside?

WaterproofingIndex's August 2026 dataset holds 14 below-grade contractors covering Leaside, at an average Google rating of 4.9★. Basement Waterproofing is the deepest category here, with 6 listed. Get three itemised quotes before you commit to any of them.

Which below-grade service scores highest in Leaside?

Underpinning & Basement Lowering leads on rating: 5.0★ across 3 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 Leaside homeowner expect to pay for basement waterproofing?

Project Landscaping (Ontario) publishes $50 to $80 per linear ft for interior drainage, basic system across the GTA, before 13% HST. Depth and access are what move a Leaside quote inside that range. The basement waterproofing cost guide on WaterproofingIndex breaks out every line item with its source.