Garrett Callahan Dba GC Carpentry
Local business · 146 Stanhope Rd, East Falmouth, MA
Verified record
- Not rated by the BBB
Highlights
- Owner-operated — Garrett Callahan runs the work himself
- Carpentry focus — framing, finish work, decks and cabinets
- Registration listed — an active HIC number appears on BuildZoom
- Almost no job history — three permits, two on his own house
- No customer reviews — nothing written by anyone who hired him
- Cape Cod base — roughly ninety miles from the North Shore
- Score is not sentiment — BuildZoom's 95 comes from permits and licences
GC Carpentry is Garrett Callahan working out of 146 Stanhope Rd in East Falmouth, on Cape Cod. The trades listed are the carpentry ones: framing, finish work, cabinets, decks and porches, and deck repair. The permit trail is thin and mostly domestic. Of the three permits on file, two are at Callahan's own East Falmouth address — a $3,000 reroof in 2024 and a wood-stove flue liner in 2022 — and the third is a 2024 electrical permit at a Village Street address in Marblehead, which is the only job on record away from home. No one has written anything about the work. BuildZoom shows no reviews, and its score of 95 is calculated from licence and permit records rather than from customers. BuildZoom lists a Massachusetts home improvement contractor registration for the business, number 187758, showing as active. That is the directory's claim rather than a check of our own, so ask for the number and confirm it with the Office of Consumer Affairs before work starts. Worth noting for anyone north of Boston: the base is on Cape Cod, roughly ninety miles from Marblehead, so ask about travel and scheduling if the job is on the North Shore. For a Cape deck, framing or finish-carpentry job, ask for recent local references — with three permits and no reviews, that is the only way to see the work.
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Update history
No changes recorded yet — last scanned Jul 31, 2026.
What does carpentry work cost in Greater Boston?
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Garrett Callahan Dba GC Carpentry. 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