# Cobblestone Group Inc. **Trade:** General Contractor / Remodeling · **Address:** 29 Massachusetts Ave, Boston, MA 02115, USA · **Phone:** (617) 236-7577 · **Website:** http://www.cobblestonegroupinc.com/ · **Languages:** English **Rating: 3.1/5** (medium confidence) — from 8 reviews across 5 sources. 88% of sentiment-scored reviews read net-positive. Last 6 months: 0 reviews, 0 negative. ## The honest read Cobblestone Group is a Boston general contractor and construction manager working from the South End to Cape Cod, with a stated focus on historic renovations and waterfront residential projects. Its written record runs from 2016 to 2021 and is mostly strong: architects, homeowners and a design partner describe full-scope renovations handled with structural problem-solving and careful finish work. The deepest accounts come from 2016. One homeowner hired Cobblestone for a year-long total renovation of a 1952 house in preparation for a sale, with the scope growing as structural issues surfaced; another describes an extensive renovation of a 1900s home's kitchen, bathroom and family room plus an addition that Cobblestone tied seamlessly into the original structure. An architecture firm working alongside Cobblestone on a large Boston gut renovation that same year called it one of the best collaborations they've had with a construction company, and a separate review describes Brian personally inspecting fire damage before the crew completed kitchen repairs with daily cleanup. That record isn't unbroken, though. In a 2021 Houzz review, a customer describes a brownstone repointing job gone badly wrong — and when they asked to have the mistakes fixed, the response was that the reviewer's contact didn't actually own the company and should take it up with his wife instead. It's a specific, credible complaint about both workmanship and how a problem was handled, and worth asking about directly. On licensing: BuildZoom lists a Massachusetts home improvement contractor license (#176274) as active as of July 2026, though filed under the name 'Cobblestone Management Group Inc' rather than Cobblestone Group Inc. — same address, phone and owner (Brian O'Connell), so likely a related entity rather than a mismatch, but worth confirming which entity signs the contract. For a homeowner planning a significant historic-home renovation or addition in Boston, Cobblestone's larger projects have a strong track record — just ask pointed questions about the 2021 complaint and get current licensing in writing before signing. **Strengths:** - Full-scope renovations — additions and structural work on historic homes - Trusted by design pros — an architect called it one of the best collaborations - Detail-oriented finish work — meticulous craftsmanship on kitchens and baths **Concerns:** - Botched repointing job — a 2021 review describes poor brownstone masonry work - Deflected accountability — owner redirected a complaint to his wife instead of fixing it **Where sources disagree:** - BuildZoom lists the company's license under the name 'Cobblestone Management Group Inc' rather than Cobblestone Group Inc., though the address, phone and owner match ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - A 2021 Houzz review describes a botched brownstone repointing job and an owner who deflected responsibility for fixing it, redirecting the customer to his wife. _(confidence: high)_ - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “1★ Had this company do a repointing of our brownstone. It was beyond terrible. When I asked him to fix it mistakes. He said oh I actually do…” - Multiple 2016-2017 reviews describe full-scope whole-house and bathroom renovations, including a 1900s home addition and a year-long total property renovation, completed with attention to detail and structural problem-solving. _(confidence: medium)_ - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ Cobblestone Group did an incredible job renovating my somewhat dated bathroom. As is often the case with older buildings, issues were enc…” - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ After living in the house on Rockwood Street since its construction in 1952, my mother-in-law reluctantly moved out and agreed to sell. I…” - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ We hired Cobblestone to renovate our kitchen, bathroom and family room. It was an extensive renovation that involved structural changes t…” - An architecture firm working alongside Cobblestone on a large Boston gut renovation in 2016 described the collaboration as one of its best working experiences with a construction company. _(confidence: medium)_ - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ Studio DRAW has been working for Cobblestone Group as the architect on a large gut renovation project in Boston. They are knowledgeable, …” - A 2016 review describes Brian personally inspecting fire damage and completing kitchen repairs and upgrades with daily cleanup. _(confidence: medium)_ - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ We had Brian from Cobblestone inspect our home after a fire and ended up hiring them to complete the repairs and make some wonderful upgr…” - BuildZoom lists a Massachusetts home improvement contractor license (#176274) as active as of July 2026, though under a related entity name, 'Cobblestone Management Group Inc,' at the same address, phone and owner (Brian O'Connell). _(confidence: low)_ - [BuildZoom](https://www.buildzoom.com/contractor/cobblestone-management-group-inc) — “Licence listed on BuildZoom: Home Improvement Contractor license #176274, Status Active, State Massachusetts, Date Issued 07-16-2026, listed…” - [BuildZoom](https://www.buildzoom.com/contractor/cobblestone-management-group-inc) — “BuildZoom profile at 29 Massachusetts Ave, Boston MA 02115 with phone 617-236-7577 and owner Brian O'Connell — the same address, phone and o…” - Self-reported as a Boston general contractor and construction manager specializing in historic renovations and residential waterfront development, in business 20 years. _(confidence: low)_ - [Official Website](http://www.cobblestonegroupinc.com) — “Cobblestone Group Inc. is a Boston general contractor and construction manager at 29 Massachusetts Ave, building and renovating homes and ot…” - [Official Website](http://www.cobblestonegroupinc.com) — “Self-reported 20 years in business” - Specializes in General Contractor / Remodeling _(confidence: high)_ - [Official Website](http://www.cobblestonegroupinc.com) — “Cobblestone Group Inc. is a Boston general contractor and construction manager at 29 Massachusetts Ave, building and renovating homes and ot…” - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “Services offered (Houzz): Accessory Dwelling Units (ADUs), Attic Conversion, Barn Design & Construction, Basement Remodeling, Bathroom Remod…” - Also offers Kitchen Remodel _(confidence: medium)_ - [Google Reviews](https://maps.google.com/?cid=12314621042040421651&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA) — “5★ Used Cobblestone for a kitchen remodel and was very happy with the results. The backsplash was a real wow factor when people entered the …” - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ We hired Cobblestone to renovate our kitchen, bathroom and family room. It was an extensive renovation that involved structural changes t…” - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ We had Brian from Cobblestone inspect our home after a fire and ended up hiring them to complete the repairs and make some wonderful upgr…” - Also offers Bathroom Remodel _(confidence: medium)_ - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ Cobblestone Group did an incredible job renovating my somewhat dated bathroom. As is often the case with older buildings, issues were enc…” - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “5★ We hired Cobblestone to renovate our kitchen, bathroom and family room. It was an extensive renovation that involved structural changes t…” - Also offers Masonry _(confidence: low)_ - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633) — “1★ Had this company do a repointing of our brownstone. It was beyond terrible. When I asked him to fix it mistakes. He said oh I actually do…” ## License Status: **not_found** — verified against the official MA state registry, never self-reported. Re-check at the official registry: https://contractorhub.mass.gov/s/hic-contractor-search ## Sources - [Google](https://www.google.com/maps/search/?api=1&query=Cobblestone%20Group%20Inc.&query_place_id=ChIJ8QW39wR644kRE71ekpdS5qo): 5.0★ from 2 ratings - [Official Website](http://www.cobblestonegroupinc.com): 20 yrs in business · Self-reported profile and service details - [BuildZoom](https://www.buildzoom.com/contractor/cobblestone-management-group-inc): Listed on this source - [Google Reviews](https://www.google.com/maps/search/?api=1&query=Cobblestone%20Group%20Inc.&query_place_id=ChIJ8QW39wR644kRE71ekpdS5qo): Listed on this source - [Houzz](https://www.houzz.com/professionals/general-contractors/cobblestone-group-inc-pfvwus-pf~631269633): Listed on this source ## Recent reviews - **1/5 · Houzz · lpcolbywest · 2021-07-09**: Had this company do a repointing of our brownstone. It was beyond terrible. When I asked him to fix it mistakes. He said oh I actually don’t own the company my wife does and she’s an attorney deal with her. - **5/5 · Google Reviews · Michael Regan · 2019-09-04**: Used Cobblestone for a kitchen remodel and was very happy with the results. The backsplash was a real wow factor when people entered the house. - **5/5 · Google Reviews · JEFFRO-C · 2018-07-10**: Perfection 👍 - **5/5 · Houzz · James Kaspryk · 2017-01-24**: Cobblestone Group did an incredible job renovating my somewhat dated bathroom. As is often the case with older buildings, issues were encountered when demolition began. Cobblestone not only navigated these issues smoothly but provided an incredible end result. You can rest assured that Cobblestone w… - **5/5 · Houzz · Thomas Krajeski · 2016-12-08**: After living in the house on Rockwood Street since its construction in 1952, my mother-in-law reluctantly moved out and agreed to sell. In preparation for the sale, we hired Cobblestone to completely renovate and upgrade the property. Most of the original bathrooms and the kitchen were still there a… - **5/5 · Houzz · Studio DRAW · 2016-12-05**: Studio DRAW has been working for Cobblestone Group as the architect on a large gut renovation project in Boston. They are knowledgeable, professional and easy to deal with personally. This has been one of the very best experiences we have had collaborating so closely with a construction company - th… - **5/5 · Houzz · K Sweeney · 2016-12-01**: We hired Cobblestone to renovate our kitchen, bathroom and family room. It was an extensive renovation that involved structural changes to our existing 1900's home and an addition. We are extremely pleased with the result! They did a wonderful job of keeping the charm of our house and extending it s… - **5/5 · Houzz · sacbikeclub · 2016-09-06**: We had Brian from Cobblestone inspect our home after a fire and ended up hiring them to complete the repairs and make some wonderful upgrades to our Kitchen. The finish work was amazing and they were diligent at cleaning up each and every day. --- Data freshness: last scanned 2026-08-01T20:02:40.303Z. Cite as: Cobblestone Group Inc. — Tavlee (https://tavlee.com/contractor/cobblestone-group-inc-boston) Source: https://tavlee.com/contractor/cobblestone-group-inc-boston