Chapman Waterproofing Company

Chapman Waterproofing Company has been sealing foundations and structures since 1925 — a century-old operation based in Holbrook, Massachusetts, with a second office in Dorchester. It isn't a name most homeowners run into through word of mouth; the company's own material describes a client list built on commercial, industrial, and institutional projects for municipal and private owners, and positions it as a consultant to architects and engineers on waterproofing for new construction and rehab work, not primarily a residential service call. Its BBB file backs up the longevity — a century in business and an A+ letter grade — though the profile states plainly that it is not a BBB Accredited Business. Google shows a 4.2-star average, but from only 6 ratings, too small a sample to say much beyond "mostly positive so far." There's no run of recent customer write-ups, good or bad, to point to. What is documented is the specialty: remedial and preventive waterproofing, from below-grade and tunnel work to sealing new-construction shells before leaks start. Directory listings round that out with leak detection, caulking, filling, and replacement work. Chapman reads as an established trade specialist built around commercial and institutional waterproofing rather than a high-volume residential outfit. It's worth a call for a serious foundation or building-envelope problem, but a homeowner should ask directly about residential-scale work and current pricing, since neither is documented publicly.