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Typical Greater Boston range for this kind of work, from regional averages — not a quote from Hammer Basement Waterproofing. 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
Several customers say they called Hammer Basement Waterproofing after other companies quoted too much or pushed too much work. In a May 2025 Google review, a customer said the other estimates were way over in price and tried to do more than was necessary; an August 2025 customer said other companies' estimates were "unreal." A 2024 customer described six months of failed visits from a foam injection company before Emilio assessed the problem. The New Bedford waterproofer shows 5★ from 171 Google ratings, and its website describes Emilio as the owner-operator. The work is sump pumps, French drains and foundation cracks. In a September 2025 review, a customer who had French drains installed said Emilio was on the job the entire time, ran some gutter downspouts underground too, and said the work comes with a lifetime guarantee. A February 2025 customer said he came out for a badly leaking crack in their foundation wall, and a December 2024 customer reported that the day after the job they got 5 inches of rain in 24 hours and the basement stayed dry. In a May 2026 review, a customer said Emilio originally quoted a fair price for a sump pump solution. A 2024 customer said he suggested they might fix their leak themselves with hydraulic cement first. Its BBB page is an A+ and it is BBB accredited.
We called Hammer Basement when our basement was flooding due to an old “dry well/sump pump/hole in the ground” started to flood our basement. Emilio came over to provide a free estimate. Emilio was beyond helpful and informative, taking the time to explain our options and what he thought our issue was. We ended up having our basement utility sink also filling with water which he explained indicated we likely had a blockage somewhere and likely wouldn’t need a sump pump installed. He was honest, straightforward, and had no intention of trying to talk us into a sump pump if it wasn’t necessary. He referred us to a plumber (Jay Rooter- also great!), who took care of the blockage. Emilio easily could have told us a million different things and gotten us to spend some money, but he didn’t. If the day ever comes when we actually need a sump pump, he’s the guy I’m calling. Thank you Emilio, for your time, expertise and kindness. I highly recommend giving Hammer Basement a call!!!
We are so glad that we went with Hammer Basement! Emilio was quick to respond and showed up when he said he would. Everyone is such a pleasure to deal with. Our basement ended up being a nasty mess to fix and a bigger job than we expected, It was sooo much better after the crew removed all the moldy material and installed a French drain and waterproofed! You won’t regret calling Hammer to help with your basement!
Emilio from Hammer Basement Waterproofing was great to work with. He originally quoted us a fair price for a sump pump solution, but after coming back when we actually had water in the basement, he reevaluated the issue and realized a sump pump might not even be necessary. Instead of pushing unnecessary work, he offered a simpler solution at no cost by drilling a few holes in the concrete slab, and it seems to have worked. It seemed like he was truly looking to help rather than pressure us into a sale. We really appreciated his transparency and would absolutely recommend him.
Emilio and his team were fantastic! Super easy to work with, great communication, and they took the time to explain everything clearly throughout the process. They got us a quote quickly, scheduled the work fast, and the service was excellent from start to finish. They kept everything clean while they were here, and the final product looks so neat and professional. Couldn’t be happier — highly recommend!
All I can say is wow! The crew works so hard and is extremely detail oriented, truly transformed our basement, very professional and experts in what they do Thank you!
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2 changes recorded — last scanned Jul 1, 2026.
Doors, decks, siding and trim repairs3.9
Active credential2.6
Forty-year leaks solved4.9
Active MA license3.2
Large institutional roofs2.3