Local business · Chelsea, MALocal business · 562 Washington Ave, Chelsea, MA 02150
Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Duncan Builders LLC. 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
Duncan Builders LLC is a Chelsea general contractor whose public profiles center on carpentry, custom home building, kitchen remodeling, and construction management. Angi describes the company as veteran-owned and says it has 23 years of experience; the Massachusetts home-improvement registration for DUNCAN BUILDERS LLC is registry-verified active. The public rating picture is small but uniformly positive: Google shows two 5-star ratings and Angi shows eight, all 5-star. BuildZoom lists a score of 92, nine projects, and one project in 2023, with permits including roofing, repairs, waterproofing, tile-deck work, and interior alterations. Before booking, confirm which license and project scope apply to your job. BuildZoom lists the active home-improvement registration and separate residential-builder/building-contractor numbers as directory claims, while the state registry verifies HIC 182212. This is a plausible fit for a Chelsea-area remodel or carpentry-led project, especially where one contractor is coordinating several trades. Ask for current references, a written scope, and the license details for the specific work before signing.
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Sep 4, 2026.
Responsive to short notice4.2
Plaster wall repair4.2