Colantonio Inc

Colantonio builds public buildings, not houses. The Holliston firm does construction management and general contracting on complex construction and renovation projects for public and private clients, self-performing sitework, carpentry and concrete. Its own account traces a line from the carpentry business Fran Colantonio started in Newton in 1978 to the company it is now, incorporated in 1984 and in Holliston since 1985; Fran Colantonio is chairman and CEO, and George Willwerth was promoted to president in 2015. The permit trail gives a sense of scale — 36 projects listed on BuildZoom. A trade publication reported in June 2024 that the company had topped off the steel frame of the new Hingham Public Safety Facility. Consumer commentary is thin, which fits a firm whose clients are institutions rather than households. Two written reviews sit behind a 4.9-star Google average across 8 ratings: one from December 2025 calling it a professional company with friendly personnel, and an all-caps one from 2023 praising the range of work its people can take on. Its BBB page carries an A+ grade and accreditation dating to 2001. One thing to check if licensing matters to your project. BuildZoom lists an active Massachusetts construction supervisor licence for the company, and it also lists several other Massachusetts registrations as inactive or at one point cancelled — three home improvement contractor registrations, a sprinkler contractor licence, and a second construction supervisor licence. Those are the directory's records rather than a verification, so the state boards are where to confirm any of them. For an owner scoping a school, community centre, or public safety building, this is a firm with decades in that lane. For work on a house, it is the wrong call.