Verified record
Allsopp Design is a South Hamilton design/build outfit that BuildZoom lists as working since 1985, with 12 permitted projects to its name. Its Massachusetts home improvement contractor registration, #106249, is active on the state registry, and its Google page carries 5 stars from 3 ratings. One thing to raise before hiring: a public OSHA inspection listing reports an inspection of the company opened in 2016 at a Lincoln site, which closed with five citations and $5,700 in proposed penalties. Ask how site safety is run on a job of your size, and who supervises the crew day to day. BuildZoom also lists a Massachusetts construction supervisor number, CS-113879, for the company — the state register is the place to check where that one stands. For an addition or a whole-house renovation on the North Shore, get the scope and schedule in writing, ask for a certificate of insurance, and ask for two or three homeowners whose projects looked like yours.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Allsopp Design inc.. 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
“ALLSOPP DESIGN, INC. — a framing contractors facility located at 208 SOUTH GREAT ROAD, LINCOLN, MA 01773 — was the subject of a formal OSHA inspection that resulted in 5 citation(s) and cumulative proposed penalties of $5,700.00. The inspection case was opened on 2016-08-30.”
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1 change recorded — last scanned Sep 15, 2026.
Gut renovations down to the studs4.9
Full remodels finished on schedule4.4
Fire and water rebuilds5.0
Detailed craftsmanship5.0
Pool and backyard builds3.4
Permit coordination3.9
Registry-verified license3.4