Professional Basement, Foundation & Crawlspace Waterproofing Contractors in Toronto, ON

Handpicked from 59 vetted & reviewed Basement Waterproofing & Crawlspace Repair contractors in the Toronto area, explore the top 5 leaders in their field among the selected group of 24 finalists.

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Watertite Waterproofers

(6)

Basement Waterproofing, Thermal Imaging, Basement Underpinning

“Water Tite Waterproofers is a A1 company. They are first class. Look no further. The team is professional, incredible workmanship, they only use the best tools and supplies. I give them a 10/10! If you are looking for a hassle free process to waterpo...”

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Anta Plumbing

(23)

Horizontal Directional Drilling, Toilet Problems, Water Softener Installation

“Fast , professional, and reasonable fees. What else can you ask? Not every business now a days that you can count on.Vert few I would say. From their customer service at the office till the last minute the crew was in my home I had the sense of a bu...”

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Konstruction Group Inc.

(18)

House
Team
Price

“I had the chance to work with Fadi on a drywall and insulation project and couldn't be happier with the results! Konstruction Group was extremely responsive, attentive, and timely to any questions I had. Would highly recommend if you're looking for i...”

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Aquatech Basement Waterproofing Toronto

(30)

Pipe
Leak
Pleasure

“I went with Aquatech for my waterproofing due to their tremendous reputation and was not disappointed. They did what they set out to do and did it when they said they'd do it. They were respectful of my property and the neighbours, and were responsiv...”

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Drain 1 Plumbers Inc.

(28)

Kitec Plumbing, Residential & Commercial Plumbing, New Construction

“Pavlo, is very professional. He came over addressed the issue and was very patient with all my questions. He scheduled the job within a few days and his team arrived on time, they were very polite, clean and completed the job in 1 day. Not many cont...”

Best of 2024

Qualification Criteria for best of Winners

Minimum Overall Score

98 (100)

Minimum Reputation Rank

99.7 Percentile

All of our award winners are based on identifiable facts - reviews, performance, and experience - collected by scientific means. We use this data to assess each business’s essential features, weighting them according to their importance to customers.

Read our methodology

Prominent finalists

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Drain Express

(30)

Quality
Basement
House

“After detecting a leak in our basement, I contacted Drain Express based on a friend recommending them. Mike was quick to respond, came by the next day and diagnosed the issue (a leaking compression valve on the main water supply to the house). His ...”

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Royal Work Basement Waterproofing Toronto

(30)

Drain Cleaning & Repair Toronto, Basement Underpinning Toronto, Battery Backup Installation Toronto

“Great work from start to finish. We can't thank Royal York Waterproof enough for being responsive and showing up in a timely manner. Everything was done very professionally and they are so knowledgeable, no more worries for us when it rains. Thank yo...”

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New Canadian Drain and Plumbing Ltd

(27)

Water Line Repair, Water Line Installation & Replacement

“We hired George when we noticed we had issues with both our sump pumps. George was able to install both pumps the very next day with his colleague Allan. We also shot two short videos of the pumps working well. In addition, we had indoor plumbing ...”

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Waterpro Master Basement Waterproofing Toronto

(20)

Sewer Backup & Snaking Services, Backwater Valve & Sump Pumps, Drain Repair Toronto

“I am so appreciative I call them first. They conveyed what they guaranteed: waterproofed my cellar quick and on schedule, cleaned the site, and tackled their job with as little interference as could really be expected. Incredible team! Strongly sugge...”

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Act Fast Waterproofing Corporation

(30)

Demolition and Excavation, Basement Waterproofing Toronto, Crack Injection Sealing

“Colm at Act Fast was one of the only companies to come out the day that I called instead of waiting a week for an appointment. Colm assesses the situation and provided the best recommendation for our circumstances. With estimate provided he proceeded...”

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Direct Waterproofing

(30)

Foundation Repair, Sump Pump Discharge Pipe Installation, Interior Waterproofing

“I'm writing this review on behalf of David Singham. This business really helped our family out in such a quick, sufficient, professional manner. Terry, it was a pleasure being able to work with you and thank you for all of the hard work you and your ...”

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Rooter-Man Plumbing & Waterproofing Toronto

(19)

High Pressure Drain Cleaning, Sewer Backup & Snaking, Drain Repair

“First time dealing with this company and very satisfied overall. Called in the morning for a quote and a couple of hours later, leak problem was being worked on. Reasonable rates too (when compared to other quotes obtained) -- would definitely use th...”

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Self Build Canada

(29)

General Contracting, Self Build Packages, Masonry Division

“We used Self Build for a large home addition. We really appreciated that they were extremely responsive to our needs, phone calls and texts. They conducted themselves with a high degree of integrity, and ensured that they didn't leave the project unt...”

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Leaky Basement

(9)

Foundation Cracks Repair, Interior Waterproofing, Sump Pump Services

“I would highly recommend RCC Waterproofing Found the team very professional from the first meeting with sales representative to the install crew that waterproofed our basement Thanks”

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Flood Tech

(11)

Construction / Rebuild, Basement Waterproofing – Division, Hazardous Materials

“Called them Tuesday night after an unexpected flood. They arrived immediately and began set up for the following days work. Came by the next day and completed almost everything in as little 2 hours. Amazing work and people. Would highly recommend”

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Canadian Rooter Toronto

(29)

Efficient
Basement
Work

“Canadian Rooter was recommended by a family member and they exceeded my expectations. Very impressed with their efficiency, responsiveness, professionalism and expertise. Naz and his hard working team overdelivered and completed all the work ahea...”

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Mr. Waterproofer

(5)

“One of the best companies I've dealt with. Very professional and responsive. Would recommend if you need your party catered. Won't let you down!!”

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Flood Guard

(1)

Leaky Basement, Water in Basement, Wet Carpet

“These guys are fantastic! After moving in to our new home we recently had a day and a half of steady rain, an existing hidden crack in the basement wall started letting water in and soaking the carpet, and after pulling the drywall and rigid foam awa...”

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Pryde Group Corp

(12)

Prices
Team
Job

“Very good and reliable prices for these guys . There job was super good , they were on time and did the job with high level . I'd recommend this company to anyone who wants there basement done in a good quality .”

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Averax Group

(9)

Project
Price
Basement

“Needed to waterproof the basement cold room in 30 y.o. house that we just bought...received number of estimates along with Averax group...competitive price...timely service as scheduled...initial waterproofing didn't work entirely due to the porousce...”

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Northern Contracting

(9)

Price
Crew

“We hired this Waterproofing company to do the job and could not be happier. They were highly professional, from beginning to end, really listened to us, understood our needs, and delivered exceptional work, on time and within the established budget. ...”

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United Waterproofers Canada

(10)

Quality
Concrete

“After carrying out an inspection and establishing the specs for the concrete repairs and waterproofing that needed to be done, we were pleased to see the results. United Waterproofers sent a highly trained crew that carried out all the work very pro...”

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Bonikar Building Solutions

(2)

“We had a great experience working with them. Will definitely use their services again.”

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Kanata Caulking & Weatherproofing

(2)

“The company did recaulking the whole house. They are polite and organized did the job in maybe 6 hours. Cleaned after finish the job and came another far for some minor retouch I am 100% happy with the job and give them 5 stars and recommend them to ...”

National Average	$4431
Minimum cost	$620
Maximum cost	$11850

Professional Basement, Foundation & Crawlspace Waterproofing Contractors in Toronto, ON