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Dseventy3 Construction LLC
Came back to fix deck stairs years later5.0
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Local businessLocal business
Verified record
BuildZoom counts 40 projects under Sean P. Gallagher's name in Westwood, and lists the licence numbers behind the work: a construction supervisor licence (CS-115421), a home improvement contractor registration (201075) and a plumber licence (15224). Building work and plumbing under one name means fewer subcontractors to line up on a renovation. Check each of those numbers against the Massachusetts registers before you sign, and ask for a certificate of insurance at the same time. For a Westwood-area job that crosses trades, ask to see two or three of those 40 projects that resemble yours, and put the scope and payment schedule in writing before work starts.
Specializes in
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Sean Gallagher Construction. Use it to sanity-check bids, then get the real number in writing.
A typical single-level deck is 12×16 — about 200 sq ft.
Estimated range
$7,750 – $14,500
Typical carpentry project around $11,100
Also offers
Languages
No changes recorded yet — last scanned Sep 4, 2026.
Came back to fix deck stairs years later5.0
Decks and porches5.0
Custom sheds5.0