Local business · Belmont, MALocal business · 50 Leonard St Ste 202, Belmont, MA 02478, USA
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Typical Greater Boston range for this kind of work, from regional averages — not a quote from Colleary Construction. 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
Nineteen reviews, all five stars, and the line that keeps repeating isn't about craftsmanship — it's about the calendar. Colleary Construction is a Belmont general contractor homeowners call for the disruptive jobs: additions, gut renovations, garage rebuilds, exterior overhauls. Its Massachusetts home improvement contractor registration is active, held under the LLC's own name. The company itself is new. Its BBB profile lists the LLC as started in June 2023, with one employee and Dara Colleary as president, and carries an A+ grade with no complaints or government actions on file. The company says Colleary came out of commercial construction with a UMass structural engineering degree and a Massachusetts Civil Engineer EIT registration — its own claim, though customers noticed the same thing unprompted. A January 2025 reviewer described him as "a trained civil engineer, a person of high integrity" who worked through the city's regulations before quoting. What the reviews describe is more useful than the star count. In a June 2024 review, a homeowner whose first general contractor took the money and left mid-job said Colleary's team picked up the half-built house and moved them in a month early. An October 2023 review walked through a two-family gut rehab that included pouring a new basement floor and installing a French drain while the heating and hot water stayed running. A January 2026 customer had a second-floor room framed over a garage; another, in January 2025, had the garage rebuilt outright. Reviewers writing through 2024 and 2025 mention crews on site every day, with Colleary himself stopping by several times a day. The newest review, from July 2026, keeps to the same theme: on time, responsive, attentive to detail. Two things worth pinning down before you call. The written history is three years deep and sits almost entirely on Google — the BBB page carries the A+ but no customer reviews at all — so there is less independent corroboration here than an established firm would bring. And while the home improvement registration checks out against the state, the company's website also claims a Massachusetts Construction Supervisor's License without giving a number; ask to see it, particularly for structural work. This is the right call for a homeowner who wants an engineer's eye on a structural addition or a renovation where sequencing and permits matter, and who is comfortable hiring a young company on a short but consistent run. Ask for the supervisor licence number, references from a project the size of yours, and a written schedule — the thing his customers say he actually keeps.
“Colleary Construction LLC, 299 Waverley Road, Belmont, MA, Petitioner, and Krzysztof and Kate Becla, 6 Squanto Road, Woburn, MA, Landowners, seeking a Special Permit from Section 7.3 of the 1985 Woburn Zoning Ordinances, as amended, to build an addition and farmer’s porch at 6 Squanto Road, Woburn, MA”
Flawless execution from an amazing team! If you are looking for a contractor who is honest, highly organized, and delivers with great precision and care, hire Colleary Construction. They kept our project completely on time and were incredibly responsive. Their attention to detail is remarkable. Every single team member from all the different disciplines (carpentry, plumbing, electrical, etc.) was pleasant, respectful, and a joy to have on our property. If you want a timely, low-stress, and meticulously executed project, I cannot recommend them enough!
Dara and his crew were exceptional! I would not hesitate to hire them for another job in the future. They created a finished room in our garage by building a second floor. Dara was excellent with communication and resolving any questions or changes/additions we requested. His crew were detail oriented in their job, they showed pride in their work, and were always friendly, courteous, and respectful.
Colleary Construction sets the standard for professionalism, attention to detail and craftsmanship. Dara was highly attentive to the project and ensured that we were consistently on the same page in terms of renovation goals and benchmarks. He was consistently available and communicative about project updates and construction progress. He provided excellent documentation to make sure there were no misunderstandings. Importantly, he was patient and solution-focused with the changes in the project as our renovation scope evolved over time. His whole team was similarly amiable, professional and capable of working through unexpected issues. Overall, Colleary Construction did a superb job and I am looking forward to working with them again.
We can’t say enough good things about our experience with Colleary Construction! Since this was our first major home renovation, we were definitely a bit overwhelmed and unsure of what to expect.From the very beginning, Dara and his team made the entire process feel stress-free and manageable. His team is friendly, hardworking, thoughtful, punctual, and incredibly meticulous with every detail. There was always someone working on site, and either a project manager or Dara himself consistently checked in, which gave us so much peace of mind. As a result, our kitchen, bathroom, and mudroom turned out beautifully—and the project was completed on time! Most importantly, communication was always open and seamless. Dara worked wonderfully with the other vendors we used and was always available to jump on a phone call, answer a text, or stop by to check on something—no question was ever too small (including how to turn our disposal back on!). He’s a great problem solver and, above all, a genuinely wonderful person who truly cares about his work and the people he works with. We definitely plan on using Colleary Construction again for future home renovation projects!
I can't say enough good things about Colleary! We worked with them our first time this past fall to help repair our porch and everything turned out so much better than we expected. Working with Dara was easy and the crew was clean respectful and nice. The craftsmanship of all the work is top-grade. The thing that impressed us the most is that they went above and beyond in many areas just seeing that something needed to get done and took care of it without us haggling on each small thing. Would HIGHLY recommend!
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Added 19 new comments, added 53 new photos, verified active license, established rating 4.0
Bathroom gut jobs4.5
Careful remodel finish work4.5
Whole-room remodels4.5
Older-home bathrooms4.4