Gamache Construction is a family-owned general contractor based in Northborough, Massachusetts, hired across MetroWest and Worcester County for home additions, whole-room renovations, and exterior work — roofing, siding, windows, decks and garages. The company says it has been at this since 2000, more than 26 years, and the Better Business Bureau's own file agrees: business started 1/1/2000, incorporated as an LLC in 2015, 26 years in business. Chris Gamache runs it, and reviewers name him directly. Its Massachusetts home improvement contractor registration, number 145576, is registry-verified active in the company's name.
What sets this record apart is that the praise is backed by municipal paperwork. BuildZoom lists 76 permitted projects filed under the owner's name — two-storey additions, a rear dormer to enlarge two bedrooms and a bathroom, an 8-by-16 addition, opening a stairway and replacing a load-bearing wall with LVL beams, a $124,000 complete interior renovation in Braintree, a $129,140 two-storey addition in Northborough. That is structural work, not surface refreshes, and it is the deepest evidence available for what this company actually builds.
Customers describe the same range and add the finish. A homeowner having a tub replaced with a walk-in shower listed every trade that came through — construction crew, plasterer, tile setters, plumbers, electrician, painters — and called them all professional and meticulous. Another described structural repair to a garage corner hit by a car, with a clear estimate, completed on time, the whole side repainted so it matched. One repeat client first hired them for a basement and came back years later for a mudroom, a deck addition and a full renovation of both floors; another wrote in January 2026 that they had used the company for over fifteen years. All 23 reviews on file are five stars, from 2025 and 2026, and Google shows 5.0 across 30 ratings.
Two things are worth raising before you sign. A permit-tracking site reports that permits filed in Worcester under Christopher R Gamache / Gamache Construction LLC since 2021 have closed at a rate below the city median, with two still open — closing a permit is what gets a job signed off, so ask directly how open permits on your project will be closed out. And one October 2025 reviewer, positive overall, mentioned communication hurdles before praising the company for showing up on an emergency.
For a MetroWest or Worcester County homeowner planning an addition, a dormer, a gut bathroom or a whole-floor renovation, this is a strong candidate with a verifiable registration and a long municipal permit history behind the pitch. Confirm which published phone number is current, and get permit sign-off milestones written into the contract.
