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Local businessLocal business
Verified record
Calvin W. Colwell operates as a general contractor based in Braintree, Massachusetts. BuildZoom lists a Massachusetts home improvement contractor license, #209465, issued 11-10-2025, for the business, along with an older Construction Supervisor license number worth confirming directly with the state. Confirm current insurance and the scope of work in writing before hiring.
Specializes in
Languages
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Colwell Calvin W Bldr. 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
No changes recorded yet — last scanned Sep 4, 2026.
Decks and porches5.0
Clients returning for 10 and 20 years5.0
Detailed craftsmanship5.0
Renovates century-old structures5.0