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A concrete slab that had leaked into the apartment below "for decades" is the job a July 2026 Angi review describes Skylight Roofing & Masonry taking on, with a twenty year guarantee offered and, in that customer's words, the lowest bid. The company's site describes a Boston, MA roofing, paving and masonry contractor that also does waterproofing, and says it has been in business 30 years. Its reviews sit on Angi, where it holds 4.5 stars from 17 ratings, and the detailed praise centers on basement water. In a November 2023 review, a homeowner described a leak between the original foundation and an extension that seeped in heavy rain; Darragh "knew exactly how to fix it" and gave a detailed description of the repair. A September 2024 reviewer said Skylight designed a solution to a waterproofing challenge that had confounded other contractors, installed a drain that works well, and re-pointed and sealed a foundation issue found along the way, with a 10 year guarantee, for $6,000. Another November 2023 customer described a punctual, clean crew and an extra trip the next morning to do a magnetic sweep of the driveway for leftover nails. In a May 2025 review, the estimator, John, came out the same day and work started within 8 days of signing the quote. Two reviews describe the opposite after payment. In a July 2024 review from Andover, a customer who paid $9,300 in the spring of 2024 said the same problem was back, "actually maybe worse," and that the company won't return calls or texts or show up to fix it. An October 2025 review is longer: a homeowner paid $37,800 for work after a spring 2024 basement flood, wrote that the basement flooded again in the fall at the first heavy rain at the site of the work, and said that as of September 2025 the repairs promised under a 25-year warranty had still not been done despite many calls and texts.
We have a huge concrete slab that's been leaking into the apartment below for decades. Skylight came in, looked carefully at the problem, and asked all the right questions. They even offered a twenty year guarantee on their work. They came and did a beautiful, neat, effective job. The kicker? They were the lowest bid! (Foundation, Basement or Crawlspace Waterproofing / Encapsulation)
I am extremely unhappy with the work and service I have gotten from Skylight Roofing and Masonry. In the spring of 2024 I had flooding in my basement. I immediately went to Angi and messaged a few highly recommended companies. Skylight answered first. I decided to hire Skylight given their 5 star Angi ratings, excellent reviews, and given what I believed was the credibility of the staff they sent to describe the problem and how they would remediate it. I was astounded by the price but felt the foundation of my home was a critical investment. I was forced to write $9,000 checks every other day until the work was complete. They would not bill me. The total cost was $37,800. I have never spent so much for any repair on my house and I have lived here for 38 years. Skylight was not sure when they would finish but finished the work on a Friday afternoon. That made me concerned that they may not have dotted all their i's and crossed all their t's - $37,800 for a week's worth of work and they just happened to complete the work on a Friday afternoon when the day before they were not sure when they'd be done. I asked to review the work and give final payment on Monday but was refused. I was forced to allow the manager to come by Friday evening to review the work he did and give him the final check, which I did. Skylight "completed" the service but my insurance wouldn't cover it. They were surprised and agreed to write a letter to the insurance company given that other customers had gotten coverage. I had told Skylight that my insurance refused coverage because the repairs were due to wear and tear and sent them the documentation. Skylight wrote the letter but did not mention that other customers had gotten coverage and did not make the case for all the work they did beyond wear and tear. They sent the letter to the insurance company without showing it to me first and gave no other details about their work except addressing wear and tear. So, of course, they gave the insurance company no reason to reconsider their position. In the process of doing that, one of the contractors came out to look at the work and noticed a problem he was anxious to fix, stating he wanted to be sure everything was done correctly given their 25-year warranty. This was in August of 2024. Nothing was scheduled. My basement then flooded in the fall at the first heavy rain at the site of their very expensive work. They agreed to fix everything but they've been putting me off since last August. It is now September 2025. I placed many phone calls and texts and always was met with promises to assign someone to repair the work. This has caused me a great deal of anxiety. I now have no faith in the work they have done. I would not ever recommend them to anyone and wish I had never hired them in the first place. I don't understand how they have such positive reviews - they were all positive when I hired them. Although I recently saw one significant negative review similar to mine on Home Advisor regarding poor follow-up and lack of response for warranty work after an upfront payment. Given all the money I've invested and the 25-year (!) warranty they gave me, I would like my money returned so that I can hire a reputable firm who will do quality work and truly guarantee their work. (Foundation, Basement or Crawlspace Waterproofing / Encapsulation)
one of the most reliable, HONEST, helpful and thoughtful repair persons it has been my privilege to have met. if he can do the work you need to get done, you won't be disappointed! he's the real deal! ($3,500)
I can't say enough 5 Star work. The estimator John came out the same day. I know that's unheard of! Then they started work within 8 days of signing the quote. Quality of work, great speed & phenomenal communication couldn't be happier! Chris from Reading (Brick, Stone or Block Wall Repair, $280,000)
John is an awesome guy! ... John is methodical, taking his time to listen to every concern you have. He is very re-assuring and does not over sell! ... John is welcome to visit anytime! ... I considered him a friend the moment I met him, which was the initial inspection!
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3 changes recorded — last scanned Sep 11, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Skylight Roofing & Masonry. 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