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Typical Greater Boston range for this kind of work, from regional averages — not a quote from Daniel J. O'Leary III. 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
Dan O'Leary does the work himself, and his customers write about him that way. "He was there start to finish," one homeowner said of a 2016 job installing six interior doors and two exterior ones — calm, clean work site, no crew rotating through the house. Angi and HomeAdvisor both put him at 4.9 stars from 53 ratings, and his Better Business Bureau profile is accredited with an A+. The repair work is where the accounts get specific. A 2015 customer described rotted sill plate and rim joist cut out and replaced, scheduled within a day of the first look. Another 2015 review walked through framing chewed up by carpenter ants and termites, cut back by hand to hold the dust down after a water-remediation crew had torn open drywall and left — with lead-paint testing before anything else was opened. In 2019 a homeowner who needed a lead-safe contractor for a door install said he took every precaution and stayed flexible through repeated manufacturer delays. Decks, porches and stairs recur just as often: a full front-porch rebuild in 2016, framed and PVC-decked with railings built, for a customer on his second project; composite side stairs and a rail system in 2020; deck stairs replaced at a rental property in 2016. Gutters show up twice, in 2015 and 2020, the second time with a repositioned drainpipe and exterior shutters added. Two things are worth knowing before calling. This is one carpenter rather than a crew, so the schedule runs on a single person's calendar — the 2019 door customer noted he was working around a busy book. And the written history leans to 2015-2020: three accounts are dated 2024 or later, the newest from April 2025, for kitchen windows and drawers with railings fixed along the way. If the job is a door, a set of stairs, a porch rebuild, or rot and framing repair on a wood-frame house, this is a close match — the same handful of jobs come back year after year, done by the same person. For a larger multi-trade renovation, ask directly how he staffs and sequences it, and confirm current registration and insurance before work starts.
Dan installed windows and draws in the kitchen. He also noticed and fixed railings etc. Everything was very well done with a fair price Sherry
Great job.
Good job
We hired Dan for the second time and we're very pleased once again. He installed two exterior doors and a storm door. He's hard working, professional, dependable and did a great job with the installs and finished carpentry work. We would highly recommend him and would definitely hire him again.
We hired Daniel to reposition a drainpipe and install a new gutter. In addition we had him install exterior shutters. We were extremely happy with the work done and would absolutely hire him again. He was professional, dependable and the quality of his work was great.
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