Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from GM Construction Improvements. Use it to sanity-check bids, then get the real number in writing.
A square is 100 sq ft of roof surface — bigger than the floor plan because of pitch and overhangs.
Estimated range
$9,000 – $18,600
Typical roofing project around $13,800
GM Construction Improvements works out of Whitman, and its Massachusetts home improvement contractor registration — #212124, in the company's own name — is active on the state registry. Its Google page sits at 4 stars across four ratings. The one written account, posted in September 2026, is short and specific about one thing: the customer was pleased with the work and singled out the price as reasonable. For straightforward home improvement work around Whitman where price weighs as much as finish, they are worth a quote. Ask for the scope and the price in writing before anything starts, settle the payment schedule at the same time, and ask which comparable jobs nearby they have finished.
Very pleased with the work done and most importantly at a reasonable price!!!
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2 changes recorded — last scanned Sep 18, 2026.
Siding and windows3.4
Quick roof turnarounds with no mess left5.0
Storm & insurance help5.0
Gutter work4.8