Reinforced Concrete
“I contacted Reinforced Concrete after I needed repairs to my finished porch / driveway and they did a wonderful job.”
Best Basement Waterproofing Contractors in Hamilton, ON
15 contractors listed · 12 in Hamilton · 2 open 24/7 · 10 open weekends · 11 rated 4.5+
Data verified October 21, 2026
A.d.s. Wash & Seal
“Our concrete needed some serious TLC and they brought it back to life.”
Aquatech Basement Waterproofing Hamilton
“The team were fast, super efficient and very conscientious of making sure no damage was done to our property.”
Prostar Concrete
“Nelson and his team went to great lengths to ensure they left me with the driveway of my dreams, entertaining my every idea, thoroughly talking through my options with me and providing their expert opinions.”
Basement Worx
“They are super knowledgeable about the best way to fix the issue and they talk you through their thought process and explain it in a way that anybody can understand (without being condescending).”
Hamilton Concrete Works
“Hey my family and I used them for our drive way project, they did such a beautiful finish.”
The 15 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 15 contractors we list are based in Hamilton; the other 3 serve Hamilton from Burlington (9 km) and Dundas (6 km). 14 of the contractors on this page have a rating, from 4.0 to 5.0 across 930 reviews; 6 have 50 or more reviews and 11 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (89%), quality (85%) and responsiveness (74%). The topics that come up most in reviews of the contractors on this page are "price", "communication" and "efficient". 2 are open around the clock; 10 are open on Saturdays and 7 on Sundays. 3 show a licence on their websites. 7 have ten or more years of experience, the longest 36 years. 3 offer emergency call-outs; 7 give free estimates; 4 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 15 of the contractors on this page; 13 publish a contact page; 11 list a public email and 1 takes bookings online. 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 15 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.
Basement Technologies
“They showed me the after video and the line is clear and should last years before we have to replace it.”
2 Dads Waterproofing Inc.
“2 dads waterproofing is the way to go if you want fast, efficient and professional help with waterproofing your basement.”
Euro Stucco INC
“Got my house done with stucco from here and they did a wonderful job removing the asbestos and adding the stucco.”
Concrete Drilling & Sawing Ltd
“Communicated clearly and transparently during quoting; worked with our tight schedule and arrived on time; executed the work professionally and diligently.”
Aidley Concrete & Snow Maintenance
“Mike was very communicative throughout the process of replacing the porch at my investment property and we were very happy with the results!”
Art'n the Ground Ltd
Silicone Seals Caulking Sealing & Pest Blocking
“Andre and Dmitri patiently worked to identify the source of the leak, repair it and restore the ceiling.”
Basement Specialist
“We appreciate Tom who is the owner of Basement Specialist, who is so easy to work with, and will not try to tell you you need additional work when you don't.”
Classic Paving & Concrete
“We hired Classic to waterproof the entire back wall of our house, expand our back patio (also running the length of the house), repair and refinish the front porch and repave our driveway.”
Why these companies made our list
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