5 Best Waterproofing Companies in Toronto (2026)

Ranked by real Google ratings and review volume · How we chose

By Brad Smith, Home Services Expert · ✓ Updated October 2026 · 8 min read

We compared 18 waterproofing companies in Toronto on Google Maps · 5 listed · How we rank

Water finds the weak spot in a Toronto foundation long before the homeowner does: a hairline crack, a failed weeping tile, a window well that never drained. The waterproofing companies in Toronto on this page have logged more than 2,500 Google reviews between them and none is rated below 4.8, so the choice comes down to the job itself, whether that is a crack sealed from the inside, a trench dug along the outside wall or a sump pump put in.

Short answer: The top pick for waterproofing in Toronto is Waterproofing PD (5.0 from more than 180 Google reviews), a one-stop basement company that handles interior and exterior waterproofing, foundation crack repair, sump pumps and egress windows, with a free in-home inspection. For the deepest review history, Aquatech Basement Waterproofing Toronto (more than 880 reviews) and RCC Waterproofing Toronto (more than 810) are the two big names, and Dryshield is the one reviewers single out for fixing a leaking crack from the inside.

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1. Waterproofing PD
2. Aquatech Basement Wate…
3. RCC Waterproofing Toro…
4. Direct Basement Waterp…
5. Dryshield Basement Wat…
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Toronto's Basement Waterproofers, Side by Side

#	Business	Rating	Reviews	Best for
1	Waterproofing PD	5.0 ★	183	One company for any wet or leaky basement	View ›
2	Aquatech Basement Waterproofing Toronto	5.0 ★	885	Deepest review history / exterior digs and weeping tile	View ›
3	RCC Waterproofing Toronto	4.8 ★	818	Clear quotes and foundation waterproofing	View ›
4	Direct Basement Waterproofing Toronto	5.0 ★	322	Foundation crack repairs and concrete work	View ›
5	Dryshield Basement Waterproofing Toronto	4.9 ★	303	Crack injection and honest advice	View ›

5 Best Waterproofing Companies in Toronto (2026)

Our top picks, reviewed

★ Featured Partner#1🕑 Open 7 days

Waterproofing PD

5.0183 Google reviews

Waterproofing PD is a basement waterproofing company serving Toronto and the rest of the GTA. It is a one-stop shop for any wet or leaky basement, with services running from interior and exterior basement waterproofing to foundation wall crack repair, basement underpinning, sump pump installation and repair, and egress window installation. It also supplies professional waterproofing products.

Every job starts with a free in-home inspection and an estimate. The shop keeps long hours, open until 8:30 PM on weekdays, with Saturday and Sunday hours as well, which suits homeowners who can only be home after work.

What people praise

Free in-home inspection and estimate before any work is agreed
Interior and exterior waterproofing, crack repair, sump pumps and egress windows from one company
Organized work with clear communication from start to finish
Careful handling of the job, with a clean workspace and clear instructions
Customers say they noticed a substantial improvement right after the work

Reputation scorecardrank in Toronto

Rating5 / 5

Review volume183 · 67th

Confidencehigh

Recency2 months ago

Info completenesssite · phone · hours

Rating breakdown98% 5-star

✓ VerifiedSource: Google

Our take: Waterproofing PD is the pick for a homeowner who wants a single company to inspect the basement, quote it and handle whatever it needs, from a cracked wall to a new sump pump. It holds a 5.0 rating from more than 180 Google reviews, and customers describe organized crews, clear communication, careful work, a tidy space afterwards and an improvement they could see right away. The company says its work carries a transferable 25 year warranty. Call for the free in-home inspection to get started.

Website +1416-333-8222 Directions

3200 Wharton Way, Mississauga, ON L4X 2C1

#2🕑 Open 7 days↩ Responds to reviews

Aquatech Basement Waterproofing Toronto

5.0885 Google reviews

Aquatech Basement Waterproofing Toronto is a waterproofing company on Hyde Avenue in York. Reviews describe its work on both sides of the foundation: exterior repairs with weeping tile replacement and a protective membrane, interior waterproofing, and weeping tile installed around sump pump rooms.

Customers also describe crews that sealed foundation cracks and left the work area tidy.

What people praise

Detailed exterior repairs, from new weeping tile to cleaning and sealing the foundation wall
Crews praised for arriving on time and keeping the work area clean
Quick estimates, with one reviewer reporting the fix within a day and a half of calling
Reviewers mention a lifetime, transferable warranty

Reputation scorecardrank in Toronto

Rating5 / 5

Review volume885 · 97th

Confidencevery high

Recency7 weeks ago

Info completenesssite · phone · hours

Rating breakdown98% 5-star

✓ VerifiedSource: Google

Our take: Aquatech has the largest review base here, and the volume matches the detail: reviewers walk through trench repairs, cracks cut and filled with hydraulic concrete, and interior jobs finished in a few hours. A safe default when you want a company that has done the work many times over.

Website +1416-300-2191 Directions

20 Hyde Ave, York, ON M6M 1J3

#3🕑 Open 7 days↩ Responds to reviews

RCC Waterproofing Toronto

4.8818 Google reviews

RCC Waterproofing Toronto is a basement and foundation waterproofing company based on Lytton Boulevard in midtown Toronto. Its reviews cover interior waterproofing in the basement, exterior foundation waterproofing and repairs to leaks entering along the side of a house.

Customers describe a representative who diagnoses the problem on the first visit and sends before-and-after photos once the crew has finished.

What people praise

A detailed quote and contract that reviewers say made the scope clear
Crews that explain the process and keep the property and driveway clean
Work finished in a few hours on some jobs and over two days on interior projects
Reviewers mention a lifetime warranty as a factor in choosing the company

Worth knowing

One reviewer waited about a week after paying the deposit before the work was booked, and the company acknowledged the delay in its reply

Reputation scorecardrank in Toronto

Rating4.8 / 5

Review volume818 · 92nd

Confidencevery high

Recency3 months ago

Info completenesssite · phone · hours

Rating breakdown93% 5-star

✓ VerifiedSource: Google

Our take: RCC pairs a very large review base with detailed paperwork, which suits a homeowner comparing several quotes. Reviewers single out the contract, the photo updates and the clean-up, and its rating sits just under the top of this page.

Website +1416-747-1920 Directions

129 Lytton Blvd, Toronto, ON M4R 1L5

#4🕑 Open 7 days↩ Responds to reviews

Direct Basement Waterproofing Toronto

5.0322 Google reviews

Direct Basement Waterproofing Toronto is an Etobicoke contractor whose Google profile also lists concrete, excavation, drainage and general contracting. Reviews describe foundation crack repairs, window well drainage repairs and basement waterproofing, plus exterior concrete work such as a new driveway and porch repair.

The reviews keep naming the same owner, Terry, as the person who visits, quotes and stays in touch through the job.

What people praise

Fast assessments, including a visit the morning after a call about a foundation crack
Photos taken throughout the repair, shared with the homeowner
Crews that arrive when promised and leave the site clean
Reviewers mention a lifetime warranty on repair work

Reputation scorecardrank in Toronto

Rating5 / 5

Review volume322 · 81st

Confidencehigh

Recency3 months ago

Info completenesssite · phone · hours

Rating breakdown99% 5-star

✓ VerifiedSource: Google

Our take: Direct suits a homeowner with a specific problem, such as a cracked wall or a failing window well, who wants one owner dealing with them from quote to finish. The excavation and concrete background also helps when a repair needs digging or new concrete.

Website +1647-492-5893 Directions

4 Faversham Crescent, Etobicoke, ON M9C 3X4

#5🕑 Open 7 days↩ Responds to reviews

Dryshield Basement Waterproofing Toronto

4.9303 Google reviews

Dryshield Basement Waterproofing Toronto is a North York waterproofing company with a toll-free line. Reviews describe interior crack injection with polyurethane, repairs to leaking tie holes and basement leak diagnosis.

Customers praise a quick scheduling team and technicians who explain the fix before starting.

What people praise

Cracks filled from the inside in a matter of hours, with vacuuming afterwards
Technicians who explain what needs doing and why
Honest advice, with one reviewer given a simple fix over the phone instead of a costly visit
Reviewers mention a 25 year or lifetime warranty on invoices

Reputation scorecardrank in Toronto

Rating4.9 / 5

Review volume303 · 75th

Confidencehigh

Recency2 months ago

Info completenesssite · phone · hours

Rating breakdown96% 5-star

✓ VerifiedSource: Google

Our take: Dryshield is the pick for a crack or a leaking tie hole that can be fixed from the inside. Reviewers describe short, tidy visits and an adviser who talked them out of unnecessary work.

Website +1800-277-5411 Directions

60 Millwick Dr, North York, ON M9L 1Y3

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How we score

Every number on this page is computed from public Google data on the date shown, not from opinion or payment. Rating is the business’s live Google star average. Review volume is how many customers have rated them, ranked against other Toronto waterproofing companies. Confidence weighs the rating by that volume, so a 4.8 from hundreds of reviewers carries more weight than a 5.0 from a few dozen. Recency reflects how recently customers are still leaving reviews. No business can pay to change these numbers.

What drives the cost of basement waterproofing in Toronto? (2026)

Waterproofing prices in Toronto depend on whether the fix is a crack injection from the inside or an exterior dig along the foundation wall, how deep the footings sit, how much concrete has to be broken and whether a sump pump or new weeping tile is part of the job. Ask for a written, itemized quote after an in-person inspection rather than a phone estimate.

Waterproofing across Toronto and the GTA

The companies above are based in Mississauga, Etobicoke, York, North York and midtown, and reviews describe work on houses across Toronto and the wider GTA. Searching for a waterproofing company near me? Each listing shows a live phone number and directions, so you can call the closest office.

What to ask before you hire a waterproofing company

Will you inspect the basement in person and give an itemized written quote?
Is the fix interior, such as crack injection, or exterior, and why?
Does the job include new weeping tile or a sump pump, and who handles the utility locates?
What does the warranty cover, and does it transfer if I sell the house?
How do you protect floors and the neighbouring property during the work?
Do you help with City of Toronto rebates or insurance paperwork?

Frequently asked questions

Do I need interior or exterior waterproofing for a leaking Toronto basement?

The reviews on this page show both. Dryshield customers describe cracks and tie holes injected from the inside in a few hours, while Aquatech customers describe digging down along the outside wall to replace weeping tile and seal the foundation. The right choice depends on where the water enters, which is why most of these companies start with an in-person assessment.

Which of these waterproofing companies also install sump pumps?

Waterproofing PD lists sump pump installation, maintenance and repair among its services, alongside its interior and exterior waterproofing.

What warranties do Toronto waterproofing companies offer?

Waterproofing PD says its work carries a transferable 25 year warranty. Reviewers of Aquatech, RCC, Direct and Dryshield mention lifetime warranties, and one Dryshield reviewer was told 25 years. Ask for the warranty terms in writing and whether it transfers to a new owner.

The bottom line

Waterproofing PD is the pick for a single company that inspects for free and handles interior work, exterior work and sump pumps. Aquatech is the safe default for review volume, and Dryshield is the strong call for interior crack repair. Whoever you choose, get the warranty terms in writing.

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