MT Drains & Plumbing LTD
“We had a water leak through the crack in the basement, The guys quickly visited us and provided a few solutions, after finalizing a quote it was a fast and quality repair.”
Best Basement Waterproofing Contractors near Richmond Hill, ON
3 of these contractors are based in Richmond Hill; the others serve Richmond Hill from towns including North York (15 km), East York (19 km) and Vaughan (7 km).
5 open 24/7 · 11 open weekends · 13 rated 4.5+ · 3 show a licence
Data verified October 18, 2026
Tri-City Roofing & Waterproofing Inc
“This is our first time using the services of Tri City Roofing Services, and I find them to be very responsive and easy to communicate with, price was reasonable, professional craftsmanship, the boss Mr.”
Masonry Richmond Hill
“These guys did a fantastic job, their prices reasonable, they were on time, efficient and were professional throughout the entire process.”
Drain 1 Plumbers Inc.
“Drain 1 had a plumber to my house for a non-urgent matter within hours.”
Aquatech Basement Waterproofing Toronto
“He also explained how I can do some additional things myself to improve water drainage on the outside and save money.”
Harmony Basements
“Everyday we were advised of next steps and there was no lull from one phase to the other”
The 15 contractors listed for Richmond Hill, 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: Richmond Hill, ON
The 15 contractors on this page are rated from 4.3 to 5.0 across 2,679 reviews; 12 have 50 or more reviews and 13 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), quality (84%) and responsiveness (75%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "cleanliness". 5 are open around the clock; 10 are open on Saturdays and 10 on Sundays. 3 show a licence on their websites and 1 lists staff certifications (IICRC). Domain records put 9 websites of the contractors on this page at ten or more years old; the oldest dates from 2005. 5 offer emergency call-outs; 2 offer financing or payment plans; 6 give free estimates; 4 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for all 15 of the contractors on this page; all 15 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 Richmond Hill. 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.
Danar
“We recently had a large renovation completed by Danar Construction - which included new stone front porch and steps, railings, front and side interlocking stone walkways, paved driveway, concrete curbs, aluminum fencing, and a stone garden bed.”
Dryshield
“The team explained the process thoroughly, and the pump has been keeping my basement dry, even during heavy rainfall.”
ADP Toronto Plumbing
“Andrew and his team provide informative explanations for the work being done, take care of logistics and provide a great clean up job in the end!”
Stay Dry Waterproofing
“Stefano and his Dad did a great job of offering solutions for our wet basement.”
NTL Contracting and Waterproofing Inc.
“They repaired my property in the city fast and efficiently!”
City Wide Group
“They always arrived when they said they would; they showed great care in their work around the foundation of my house; and they cleaned up beautifully.”
Nusite Contractors Ltd.
“Justin and his crew were amazing, work was exceptional and crew very clean, highly recommend them.”
Three Little Pigs Masonry
“This masonry crew is very professional and do amazing work.”
True North Underpinning
“I take every opportunity to tell friends and neighbours about how happy I am with them and if I needed underpinning on any future houses, they would be the only ones I would call.”
Why these companies made our list
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