MJM Masonry

MJM Masonry has been laying brick and stone around Arlington since 1992, and its name carries a bit of television history — a 2026 Reddit thread flags the owner, Mark McCullough, as "from This Old House," and NBC Boston tapped him in 2023 for his take on home-improvement scam red flags. The company works chimneys, retaining walls, patios, brick veneers and elevator shafts, split between homeowner projects and heavier commercial masonry. Its history leans commercial rather than residential: Engineering News-Record listed MJM as the masonry subcontractor on a 2022 project alongside firms like Erland Construction and Matrix Interior Construction, and High-Profile Monthly named it on a similar job back in 2014. Its Massachusetts Home Improvement Contractor registration (#132984) is active and verified against the state registry, and the company says it belongs to the Associated Builders and Contractors and the National Safety Council. What's missing is any customer voice — BBB, BuildZoom and Procore all show zero reviews and no star rating, so there's nothing to check how residential clients felt about the work. There's also a formal OSHA inspection tied to a company facility in Burlington, operating under the fuller name "MJM Masonry & Custom Construction, Inc." — four citations and $14,700 in proposed penalties, with no word on when it happened or whether it was resolved. Procore separately tags the business as woman-owned and WBE-certified, which sits oddly next to Mark McCullough's name as president everywhere else — worth asking about directly. For a homeowner, MJM reads like a shop built more for commercial and specialty stonework than for collecting residential reviews — plausible for a chimney or retaining-wall job given a company that's been at it since 1992, but with no customer track record to lean on and an open question about that OSHA history, it's worth asking pointed questions before signing anything.