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Porch stability, leaking chimneys and basement drainage are among the jobs customers have described hiring John O'Sullivan to address. His company, O'Sullivan Brick and Stone, says it is an owner-operated masonry business based in Foxborough, offering masonry, hardscaping, excavation and drainage work. A December 2024 customer contacted John about a front porch left vulnerable and unstable by receding land. They said he responded promptly, explained the process and gave a reasonable quote; after work by John and his crew, the customer reported the issue fully resolved. In June 2024, another customer praised his repairs to cracks in basement walls. A May 2026 reviewer also recommended him for masonry projects, describing prompt service and praising the quality of the work. Older customers described specific work around water intrusion. In a May 2023 review, a homeowner who had hired John for several projects at two homes said he repaired and sealed two leaking chimneys in April 2023. At the time they wrote, neither had leaked again. They also praised his timeliness and cleanup across their projects. A September 2022 customer described a patio redo, six window wells and a pipe or drain installed to prevent basement water problems. In February 2022, a different customer said he completed a French-drain installation by their deadline while they were unable to be on site, using a solution they described as more straightforward and cost effective than alternatives. Another homeowner, writing in March 2022, said he cleared dirt and loose stones from an old-house basement and sealed its crumbling foundation walls, finishing within the estimated timeframe. Google lists a five-star average from ten ratings. John O'Sullivan's Massachusetts home improvement contractor registration, number 185782, is active according to the state registry. BBB gives the business an A+ grade, lists 15 years in business and says it is not BBB accredited.
John O’Sullivan did a terrific job on our masonry projects! He’s wonderful to work with … so engaging … incredibly professional … and very prompt in providing his service. I highly recommend O’Sullivan Stone for all your stone & masonry needs. You’ll be very satisfied with the quality of the work.
I highly recommend O’Sullivan Brick and Stone out of Foxborough! I contacted John after searching for a local mason and seeing his company and their fantastic reviews. He got right back to me and came by to look at the front porch where the land was receding, leaving the porch vulnerable and unstable. John gave me a reasonable quote and explained the process fully. He and his crew were professional, highly skilled, hard working, and friendly. My issue has been fully resolved and I have already recommended John to two friends who have had work quoted. I’m very satisfied with O’Sullivan Brick and Stone!! Thanks John!
Had some cracks in basement walls repaired by John O’Sullivan today. I am very pleased with the results. John is kind, professional and extremely knowledgeable. From start to finish it was a pleasure dealing with him. I would highly recommend O’Sullivan Brick & Stone to family & friends.
I would absolutely recommend O'Sullivan Brick and Stone. I have used John for several projects at two different homes and he has been timely, efficient and clean each and every time. His work is immaculate and he does all of the little things that make the job right. Most recently (April 2023) he repaired and sealed both of my chimneys that were leaking for a variety and reasons and I have not had a leak since. His work speaks for itself and he truly cares about each and every project. A true craftsman.
John was great from start to finish. Came out quickly and gave a quote on the spot. We hired John to redo our patio and are thrilled with the results. We added 6 window wells and he installed a pipe/drain to ensure no issues with water in the basement. We cannot recommend O’Sullivan enough.
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1 change recorded — last scanned Sep 30, 2026.
Chimney servicesNot yet rated
BBB A+3.0
