Verified record
Wet basements are the whole business at LeBlanc Basement Waterproofing, a family-run Boxborough company that says Corey LeBlanc started it in 2014. Its Google page shows 5★ from 23 ratings, and Corey is the name customers mention most. In an April 2024 review, a customer who had dealt with inches of water in their basement daily for over a year said Corey explained the options patiently and the crew finished within the estimated time. A 2024 customer whose basement flooded in every downpour called the quote more than reasonable, and a July 2024 customer said Corey laid out several options without any pressure. The installs described are French drains, sump pumps, vapor barriers and perimeter systems. In a January 2026 review, owners of an 1800s colonial said LeBlanc worked on a basement whose ceilings were so low they could not stand up in it.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from LeBlanc Basement Waterproofing, LLC. Use it to sanity-check bids, then get the real number in writing.
Not sure which you need? Start with an inspection — many reputable companies assess free, and independent assessments run up to $500.
The wall run getting the drain — a full 30×40 ft basement is about 140 ft.
Estimated range
$7,600 – $15,000
Typical waterproofing project around $11,300
I can’t say enough about Leblanc Basement Waterproofing! They do great work. Corey was exceptionally helpful and knowledgeable. And I absolutely would call them again with a basement issue.
LeBlanc did an amazing job with our basement. In our 1800's colonial, the basement ceilings were so low that I couldn't stand up without hitting my head. Corey and his excellent crew dug the floor down another foot, installed a perimeter drain, structural supports, and new concrete floor—and then waterproofed the walls. The difference is night and day. The crew were highly skilled and the whole experience was very professional from day one. Highly recommend LeBlanc!
EVERYone at LeBlanc Basement Waterproofing is professional, educational, knowledgeable, friendly, respectful, neat and clean. The crew showed up exactly when they said they would and they kept me informed during the job. They answered my questions. Before they cut anything, they went through my cellar and put up plastic barriers to isolate the upstairs and to keep the dust off my belongings. They jackhammered and cut a lot of concrete and every day, they used a fan to evacuate dust and they swept up and vacuumed up before leaving. The install was exactly as advertised; nice and neat and clean and well done. If I had another cellar to waterproof, there is NO QUESTION that I would choose Corey and his crew again! If I could give them 20 stars and 50 thumbs up, I would! I HIGHLY RECOMMEND LEBLANC BASEMENT WATERPROOFING FOR THEIR EXPERTISE, USE OF GREAT PRODUCTS AND FABULOUS INSTALL, PLUS THEY WERE VERY EASY TO WORK WITH.
Mike and Zack were amazing! They were professional, personable, courteous and worked so hard all day! They work extremely well together and politely declined breakfast and lunch- they came well prepared. They did first class work fixing my basement and I give my highest recommendation for LeBlanc Basement Waterproofing - you will be happy! The entire process was easy and Corey is great to work with. Very responsive and answers all questions. 10 star review
Rick and his team were excellent to work with and they did a great job!
Specializes in
Also offers
Service area
Languages
Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Jul 1, 2026.