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Doherty Building & Design is a Chelmsford design-build contractor that reports 39 years in business, and Brian Doherty's Massachusetts home improvement contractor registration (113386) is active on the state registry. Its site describes a room-over-garage project it designed, engineered and built, turning an unfinished space above a two-car garage into a room with a new full bath, an electrical service upgrade and a separate HVAC system. The site also lists MA License # 057980. It has three Google ratings averaging 4.3; a July 2025 reviewer called the work reliable. In a 2013 Houzz review, a customer who hired the company to side their home found the rate very reasonable. BuildZoom shows 17 of its projects.
Amazing work and reliable - the best!
This isn’t a review on customer service or even their work but really? Blocking a handicapped sign to park on the parking island isn’t cool.. there were like 15-20 spot in the parking lot. Walk like the rest of us or don’t do business (no i do not care if this is your building means even more to not block handicapped spots if it is your building) straight up pathetic
We have hired Doherty construction to side our home. They have been great to work with so far. Very professional and extremely pleasant. Rate was extremely reasonable.
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1 change recorded — last scanned Sep 22, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Doherty Building & Design. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$23,000 – $35,000
Typical remodeling project around $29,000
Gut remodels of every rental unit's kitchen and bath4.0
Design-build additions3.8
34 years in business3.7
45 years in business3.0
48 years in business2.6
