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SealProMax New England does one thing: injecting a gel sealant into leaking basement walls and cracks, a job customers say took about a day and cost far less than rebuilding the wall. BBB lists the company at 99 Washington St in Abington under president Rodrigo Trindade, incorporated in May 2021 with two employees, accredited since November 2022 with an A+ grade; BBB also records a Massachusetts Office of Consumer Affairs licence number, 206884, for the business. The written history is fifteen Angi reviews, all five stars, and all from March 2022 through January 2023. Homeowners writing then described basements that had leaked for years going dry after the injection — one said water stopped ten minutes after the treatment, another had already tried a sump pump and still got water through the cracks before this fixed it, and a third said it was the only company able to stop the infiltration. Several mentioned Rodrigo coming back on his own to touch up spots or check that the basement stayed dry, and one review listed a five-year guarantee with return visits if more treatment is needed. One customer recorded a $9,000 job; the Angi gallery shows project ranges of roughly $2,000 to $10,000. A couple of things to know before calling. Eight of those fifteen reviews are dated the same month, March 2022, and the newest is from January 2023, so the account you'd be reading is a few years old. The Angi and HomeAdvisor profiles are filed under a Miami Beach, Florida address and say the company serves both Boston and Miami, while BBB has it in Abington — worth confirming which office you'd be dealing with. The company also says it speaks Spanish. If your basement takes on water through foundation cracks and you want the leak sealed without excavation, the people who hired them in 2022 got dry basements at a fraction of the cost of other fixes. Ask what the five-year guarantee covers and get the Massachusetts address in writing.
First of all, I want to thank Rod and his associate for their continued concern that their work had solved my basement water issues. It has, and things are dry for the first time in umpteen years. I can now sit back and enjoy the winter months, rather than spend my time dealing with water problems. Rod has called me 4 or 5 times and has come back a couple of times to clear up a couple of small things. I would highly recommend SealProMax, and Rod, to anyone who might have basement water issues. Rod is a very conscientious person. And you don't find many people like that out there. Good job. Thanks Rod! (Job cost listed as $2,500.)
Rodrigo was fantastic and his employees were great! They made sure everything was to our satisfaction. They also give you a 5 year guarantee and will come back if they need to do additional treatment. Would recommend to everyone.
It went great. Rodrigo was very professional and even came back to touch up a few spots. I would definitely recommend him.
These guys were incredible! Hardworking, eager to please, friendly, professional, and wanting to come back to fix it if I wasn't satisfied
The job went very well. The substance, which was gel like, I thought was a perfect fit for the job. Rod was great to work with. He has a great work ethic. His only two concerns are that the customer is more than satisfied and that the job is done correctly, as a matter of fact, he did more than what was planned on. I would easily recommend him to family members as well as friends. I might add he is reliable as well, when he says he is going to be there ...he's there. Great job....well done!
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1 change recorded — last scanned Jul 29, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from SealProMax New England. 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
Basement waterproofing5.0
Retaining walls5.0
Bulkhead replacement4.8
Brick and 1850s fieldstone foundations repointed4.8
Owner-led communication4.8