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Prime Waterproofing
- Quote
- Job
- Efficient
“Prime Waterproofing did amazing work around my house,good quality,on time,responsibility…Thank you guys ,definitely recommend this company and crew,thanks Nick”
Best Basement Waterproofing Contractors in Mississauga, ON
24 contractors listed · all 24 in Mississauga · 7 open 24/7 · 17 open weekends · 21 rated 4.5+
Data verified October 18, 2026
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Aquamen Waterproofing & Underpinning
- Foundation
- Property
- Quote
“They were careful to make sure everything is done right, digging a deep trench by hand in the middle of summer to make sure there is no risk to gas line near the house.”
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Rooterworx
- Clean
- Camera
- Drain
“Oleg and his team dug out the drain, did camera inspection, replaced both the drain and part of the weeping tile, installed new membrane and re-installed the well stones all in one day.”
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Waterproofing PD
- Questions
- Foundation
- Quote
“The end product of waterproofing the exterior of the house as well as installing the sump pump to stop water from flooding the basement is working fantastic and completed with the highest quality workmanship.”
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Canada Waterproofers Mississauga
- Pipe
- Faucet
- Diagnosed
“From his calm and calculated demeanor to his willingness to listen and provide the right solution, it was an absolute pleasure to deal with someone at the top of his field.”
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Galaxy Plumbing Inc.
- Drain
- Kitchen Sink
- Valve
“I had the pleasure of having Nick from Galaxy Plumbing handle a plumbing issue at my home recently, and I couldn't be more satisfied with the service.”
The 24 contractors listed for Mississauga, 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.
Area overview: Mississauga, ON
All 24 contractors we list here are in Mississauga itself. 22 of the contractors on this page have a rating, from 4.1 to 5.0 across 1,102 reviews; 7 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), quality (82%) and responsiveness (78%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "cleanliness". 7 are open around the clock; 17 are open on Saturdays and 12 on Sundays. The services the contractors on this page list most often on their websites are basement waterproofing (3), expansion joints (2), exterior waterproofing (2), foundation crack repair (2) and foundation repair (2). 7 show a licence on their websites. Domain records put 5 websites of the contractors on this page at ten or more years old; the oldest dates from 2008. 7 offer emergency call-outs; 15 give free estimates; 2 are family- or locally-owned and 4 list coupons or special offers. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.
How many opinions should I get for a damp problem?
There are 24 listings for Mississauga. 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.
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Draincom Basement Waterproofing Toronto & GTA
- Clean
- Call
- Questions
“They sacrificed their time and at no charge to me, asked around and through a network, they were able to connect me with an equally honest company who is coming within days to fix my stinky problem.”
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Pryde. Group Corp. Basement Drains and Waterproofing in Toronto
- Sewer
- Camera
- Pipe
“I had to have part of my sewer drain line repaired and Pryde was everything you would hope for: fair price, on time, good workmanship, professional and tidy.”
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Drymax Waterproofing
- Property
- House
- Lawn
“We had a major flood in our basement, and Vasyl from Drymax was responsive, informative, and just extremely helpful in guiding us through the steps we needed to take to prevent any future flooding.”
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Will Fix
- Project
- Price
- Basement
“Not only did they complete the job flawlessly, but they also left the site spotless, which speaks volumes about their dedication to customer satisfaction.”
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MMT Waterproofing
- Company
- Quotes
- Job
“Mario offered multiple solutions, clearly explained the pros and cons of each, quoted fairly and completed the project efficiently and with very little disruption to my household.”
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Quality Age Build
- Drainage
- Price
- Foundation
“I requested a free estimate on what I thought was a leak in my foundation but during the inspection Ura isolated the issue to a leak in a drainage pipe which was a simple fix.”
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Water Pro Master Corp
- Quote
- Project
- Basement
“I wanted to make a alteration to the outside drain and they came the next day and fixed it charging me only for the materials despite it taking hours to complete.”
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Drains Canada
- Polite
- Inspection
- Plumbers
“Firstly I don't like to give reviews,however, I feel compelled to rate this Company and it's Owners/Tradespeople due to the awesome experience that I recently had with Drains Canada .”
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Corcon Construction Limited
- Painting
- Restoration
- Project
“We contracted them to restore an older underground parking garage which had many problems and complications in the general layout as well as a lot of concrete deterioration.”
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Aquapro Waterproofing
- Team
- Prices
- Plumbing
“I highly recommend Aquapro for their expertise in foundation crack repair; their meticulous approach and commitment to quality craftsmanship ensured my home's structural integrity was restored with precision.”
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Metal Exterior Products Inc.
- Professional
- Efficient
“Now people have opportunity to be under reliable and worry free roof.”
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Waterproof Masters & Associates Inc.
- Job
“John and his team at Waterproof Masters put me at ease with their knowledge of waterproofing and provided me the best and most cost efficient ways to deal with our leak.”
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Pro Master Interlocking & Restoration
“We are extremely pleased with such good service and fair price.”
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Kome Waterproofing & Underpinning Inc.
- Crew
- Project
- Basement
“Guys were very professional and completed everything according to the contract, giving my company the opportunity to finish the whole basement, converting it to a separate rental unit.”
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Fida Restoration
“Very pleased with the quality and expertise of the work that was completed .”
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YY Applications INC
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D & D Crack Repair Ltd
“The guys at D & D Crack Repair were very knowledgable and were successful in solving our water leaks on the first visit and have been back to fix problems with great succession for more times!”
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Elevator Waterproofing Solutions Inc.
Basement Waterproofing Services in Mississauga, ON Cost Estimates
Minimum cost
$856
Maximum cost
$16391
National Average
$6129
$2851
$9264
Typical price range is based on 376 cost profiles
Why these companies made our list
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