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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
Skylight Roofing & Masonry, a Boston-based contractor, is the company Somerville-area homeowners call for a leaking foundation, a wet basement, or a cracked brick wall — the roofing half of its name shows up in its own service list, but nearly every review on file describes a waterproofing or masonry repair. The company says it has been in business 30 years. The strongest thread is basement and foundation work. In a July 2026 review, a homeowner described a concrete slab that had been leaking into the apartment below for decades finally getting a clean, effective fix backed by a twenty-year guarantee. A 2024 review credits Skylight with solving a foundation drainage problem other contractors couldn't crack, then re-pointing and sealing a related foundation issue under a ten-year guarantee. Masonry work draws similar notes — a 2024 reviewer called a wall repair "professional and quick," and a 2025 customer said an estimator showed up the same day and had a crew on site within eight days of signing. Across Angi and HomeAdvisor, the company holds a 4.5-star average from 17 ratings on each, with reviews on file back to 2023. Two accounts are worth reading closely before signing a contract. In an October 2025 review, a homeowner said a foundation waterproofing job that eventually cost $37,800 flooded again months later, and that calls and texts about the 25-year warranty went unanswered for over a year. A July 2024 review describes a $9,300 repair with the same problem resurfacing and the same trouble getting Skylight to come back. Both reviewers describe good communication and pricing up front, then difficulty reaching the company after the check cleared. For a straightforward foundation leak or masonry repair, the reviews point to careful, guaranteed work done right the first time. On a larger waterproofing project, it's worth asking upfront how warranty callbacks are handled if the same problem returns.
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!
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.
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!
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
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2 changes recorded — last scanned Sep 11, 2026.
Resolves persistent basement dampness5.0
Driveway paving5.0
Durable stone & block retaining walls4.9
Bulkhead replacement4.8
Structural carpentry4.8