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A.d.s. Wash and Seal
- Brand
- Walkway
- Pool
“It took a little longer than anticipated due to the weather and rain, but I was pleased that they were more concerned about doing the job right rather than trying to get it done quickly.”
Best Basement Waterproofing Contractors in Hamilton, ON
24 contractors listed · 12 in Hamilton · 6 open 24/7 · 19 open weekends · 20 rated 4.5+
Data verified October 21, 2026
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Reinforced Concrete
- Driveway
- Backyard
- Steps
“She assured me that while the quote I need is for a very small issue all quotes are worthwhile and they will definitely send someone out to quote, in person.”
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Aquatech Basement Waterproofing Hamilton
- Efficient
- Walls
- Price
“The back wall of the house had/has structural damage and the repair was made but they were not allowed to pack down the the dirt along that wall and said they would be back in the spring to fill in the areas that sank on their own and left a large pi...”
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Prostar Concrete
- Future
- Walkway
- Stairs
“We were looking to complete a big project and Nelson's team was up to the task, and often going above & beyond to complete crucial parts of the project on time.”
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Hamilton Concrete Works
- Communication
- Project
- Prices
“I recently had the pleasure of working with Hamilton Concrete Works for a substantial project involving the installation of a concrete driveway pad, a sidewalk around my home, and the renovation of my concrete foundation.”
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SCP Stamped Concrete Pros Inc.
- Work
- Backyard
- Design
“After having done exhaustive research, we chose to work with SCP Stamped Concrete Pros because of their work and reputation in the industry and are we ever glad we did!”
The 24 contractors listed for Hamilton, 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: Hamilton, ON
12 of the 24 contractors we list are based in Hamilton; the other 12 serve Hamilton from towns including Oakville (26 km), Burlington (9 km) and Stoney Creek (11 km). 23 of the contractors on this page have a rating, from 3.8 to 5.0 across 767 reviews; 6 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (94%), quality (88%) and responsiveness (74%). The topics that come up most in reviews of the contractors on this page are "price", "communication" and "cleanliness". 6 are open around the clock; 19 are open on Saturdays and 11 on Sundays. The services the contractors on this page list most often on their websites are basement lowering (2), exterior waterproofing (2), foundation repairs (2), interior waterproofing (2) and waterproofing (2). 6 show a licence on their websites. 12 have ten or more years of experience, the longest 36 years. 7 offer emergency call-outs; 12 give free estimates; 4 are family- or locally-owned and 1 lists coupons or special offers. We count these figures across the contractors on this page; distances are straight-line, and 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 Hamilton. 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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Basement Technologies
- Team
- Work
- Price
“I called immediately to let them know, and Randy was friendly and courteous and assured us they would use the sump pump for another job and wouldn't charge us for the last minute booking and cancellation.”
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2 Dads Waterproofing Inc.
- Work
- Basement
- Job
“Even though they probably didn't want me watching them as much as I did, it was interesting to watch the process as I've never had this issue before and had no idea how to even get it fixed.”
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Aidley Concrete & Snow Maintenance
- Owner
- Driveway
- Patio
“Just wanted to say these company and especially the owner came up with a very creative design that blew my mind and I can't believe the outcome and attention to detail I could not be a happier customer I will defentilty use them again everyone should...”
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Euro Stucco INC
- House
“I would recommend Euro Stucco to any friend or family looking for Stucco instullation.”
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Concrete Drilling & Sawing Ltd
“I had a big section of factory floor cut out.”
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Art'n the Ground Ltd
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Silicone Seals Caulking Sealing & Pest Blocking
- Quality
- Cleaning
- The Future
“He re-did the entire bathtub surround, removing all the (problematic) caulking, thoroughly cleaning the affected area, and skillfully applying new acetoxy caulking rated for bathrooms.”
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H&N Basement Worx
- Team
- Price
- Quote
“As soon as we met Dave, he put our minds at ease and made us feel comfortable with all of our decisions, was thorough with his explanations and flexible when we changed our original plan.”
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Precise Plumbing & Drain Services
“Called this company to do a quick repair after trying and failing to change a cartridge on a shower that had been improperly installed by the houses former owner.”
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Aqua Stop Waterproofing and Construction
- Project
- Leaks
- Rain
“The owner, Anto, literally spent so much time answering all of my questions and concerns WITHOUT making me feel stupid or annoying ( something in which every other contractor I got a quote with did).”
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Drychek Waterproofing
- Basement
“Two weeks later the job was done, area cleaned and now I have a finished basement to use!”
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Golfi Concrete & Drain Limited
- Quality
- Price
“They have and continuously dedicate their time and efforts to raise funds that are put forward towards huge smiles and playful times for these precious children.”
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Bellecasa Waterproofing Ltd
“We received amazing service from the initial call we made, excellent workmanship and the crew was polite, honest and told us exactly what needed to be done to repair our home.”
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Foundations First
- Job
- Communication
“Despite being booked solid for 3 weeks, John and Dave were able to squeeze me in and finished the job quickly, professionally and waterproofed our basement while making our basement stairs look beautiful.”
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Dryseal Concrete Solutions Inc.
- Company
“We had quite a bit of landscaping done and the ground has likely shifted causing a very small leak to re-appear in one of the injection ports from the previous injection.”
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Aqua Dry Waterproofing Technologies
- Leak
- Basement
- Foundation
“Bradley was quick to respond and help out in explaining the waterproofing work and crack injection requried as well as going above and beyond to check my basement for any potential waterproofing issues.”
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Basement Specialist
- Work
- Foundation
- Team
“Having just moved to Dundas and since the previous owners had used The Basement Specialist to do a bit of work on sealing the foundation and it looked good, we decided to to call them to do 3 sides of the house prior to doing extensive landscaping.”
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Kemper Concrete Inc.
“After talking to Dennis at the initial visit I felt so confident that the job I needed done would be done to perfection Not every company felt comfortable tackling my job but Dennis stepped up and did a phenomenal job.”
Basement Waterproofing Services in Hamilton, ON Cost Estimates
Minimum cost
$855
Maximum cost
$16381
National Average
$6126
$2849
$9259
Typical price range is based on 479 cost profiles
Why these companies made our list
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