# Back Bay Mechanical AC Repair & Heating

**Trade:** HVAC / Heating & Cooling · **Address:** 654 Washington St, Braintree, MA 02184, USA · **Phone:** (617) 397-4409 · **Website:** https://www.backbaymechanical.com/ac-repair/?utm_source=google&utm_medium=organic&utm_campaign=gbp_braintree · **Languages:** English

**Rating: 4.3/5** (high confidence) — from 100 reviews across 5 sources.
98% of sentiment-scored reviews read net-positive. Last 6 months: 1 reviews, 0 negative.

## The honest read

Back Bay Mechanical is a Braintree, Massachusetts HVAC company reviewers describe calling after somebody else already tried and failed — in a 2024 review, one homeowner said a technician named Keith diagnosed and fixed a system in under two hours after six other companies couldn't get it working. The company works across the Boston area, with a track record heavy on installs in older buildings — brownstone condos, tight single-family houses — that make the average HVAC job more complicated.

Its Google page holds a 5★ average across 113 ratings, and its written record runs 100 reviews from 2023 into this year across five sources. In a review posted in late 2025, a South End condo owner said they picked Back Bay after two other providers couldn't handle the building's space constraints, and found the crew organized and communicative through an HVAC replacement. A South Boston homeowner, in a 2024 review, recalled getting three quotes for a central-air install in an old single-family house and going with Back Bay — not the cheapest bid, but the one that was upfront and treated her with respect throughout the job. Its Massachusetts HVAC license is active with the state, and BBB rates the company A+.

Speed during a squeeze comes up more than once: a 2025 review described a fair quote within 24 hours and parts sourced in days when other shops were quoting six-to-eight-week waits, during a late-summer AC outage. In a 2023 review, a first-time customer had an unexpected gas furnace repair scheduled promptly, with the technician identifying the needed part and returning the next business day to finish the job. Another 2023 review described a broken heat pump replaced within a day of the call, with the installer laying down a drip cloth and wearing shoe covers before starting.

Not everything is spotless: a BBB-reported account describes the owner using profane, derogatory language toward a resident during a job at a shared building — worth asking about directly if you live in a condo or multi-unit property, where an install means more contact with neighbors than a single-family job.

Back Bay reads as the call for a stubborn heat pump or AC problem, or an HVAC job in a building with tight space and older infrastructure — the same theme keeps repeating across its reviews: fixing what someone else couldn't. Confirm scheduling and who'll be on site before booking, especially in a shared building.

**Strengths:**
- Fast diagnosis — fixed a system in two hours after six others failed
- Old-building installs — handles tight condos and older single-family homes
- Quick parts sourcing — got AC parts in days when others quoted months
- Careful on-site work — drip cloths and shoe covers on installs

**Concerns:**
- Owner conduct — BBB account reports profanity toward a resident on-site

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- Diagnosed and fixed an HVAC system in under two hours after six other companies failed _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURUbEtYUUFnEAE!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgIDTlKXQAg%7C%7C?hl=en) — “5★ My technician, Keith, was able to diagnose and fix the issues with my HVAC system in less than two hours. Six other people have come out …”
- Handles HVAC installs in space-constrained older buildings like brownstone condos _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2psdlZUWlhWelZ1VGxjNWJuQjFkRlJWYjBZNGJHYxAB!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CAIQACodChtycF9oOjlvVTZXVzVuTlc5bnB1dFRVb0Y4bGc%7C%7C?hl=en) — “5★ We hired Back Bay Mechanical to replace an HVAC unit in our brownstone condo in the South End. We found them after trying two other promi…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUR6M2VUeUtREAE!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgIDz3eTyKQ%7C%7C?hl=en) — “5★ My neighbor first recommended Back Bay Mechanical  in 2020 when I decided on installing central air conditioning  in my old, single-famil…”
- Sourced AC parts within days during a late-summer outage when others quoted 6-8 weeks _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2t4elRrOVFVVlpLTVZodmNEUnlXRkF5U0VOVVVIYxAB!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CAIQACodChtycF9oOkxzTk9QUVZKMVhvcDRyWFAySENUUHc%7C%7C?hl=en) — “5★ I reached out and James and the team gave me a very reasonable quote within 24hrs.

They also were able to source parts in a timely manne…”
- Installers use drip cloths and shoe covers to keep job sites clean _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURKcGF5Q1VBEAE!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgIDJpayCUA%7C%7C?hl=en) — “5★ I had a broken heat pump and consequently, no A/C. The owner of Back Bay Mechanical came out within a day to assess the problem and got m…”
- A BBB-reported account describes the owner using profane, derogatory language toward a resident during a job at a shared building _(confidence: medium)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/braintree/profile/mechanical-contractors/back-bay-mechanical-contractors-0021-512151) — “This business was used to install a mini split system in a gut renovation for a condo in a shared small building. The owner REMOVED was caug…”
- Massachusetts HVAC license 796-SM-B verified active with the state registry _(confidence: high)_
  - [State License Registry](https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page) — “MA hvac license 796-SM-B verified active”
- BBB grade A+ _(confidence: high)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/braintree/profile/mechanical-contractors/back-bay-mechanical-contractors-0021-512151) — “Better Business Bureau grade: A+”
- 5-star average on Google across 113 ratings _(confidence: high)_
  - [Google](https://maps.google.com/?cid=331786642070217167&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA) — “Google: 5★ from 113 ratings”
- Featured in a This Old House HVAC installation segment _(confidence: medium)_
  - [thisoldhouse.com](https://www.thisoldhouse.com/this-old-house/season-47/needham-suburban-victorian/episode-15) — “thisoldhouse.com — HVAC installation: Back Bay Mechanical”
- Heat pump installation and repair _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURUbEtYUUFnEAE!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgIDTlKXQAg%7C%7C?hl=en) — “5★ My technician, Keith, was able to diagnose and fix the issues with my HVAC system in less than two hours. Six other people have come out …”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tad1J5MXdXVUZDU0VkT1NIRlplSEZNV2t4NVUxRRAB!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CAIQACodChtycF9oOkZwRy1wWUFCSEdOSHFZeHFMWkx5U1E%7C%7C?hl=en) — “5★ What a great company.  Recently had new heat pumps, thermostats, and fans installed by Back Bay.  The owner Keith, was easy to talk to an…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURKcGF5Q1VBEAE!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgIDJpayCUA%7C%7C?hl=en) — “5★ I had a broken heat pump and consequently, no A/C. The owner of Back Bay Mechanical came out within a day to assess the problem and got m…”
- Central air conditioning installation _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUR6M2VUeUtREAE!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgIDz3eTyKQ%7C%7C?hl=en) — “5★ My neighbor first recommended Back Bay Mechanical  in 2020 when I decided on installing central air conditioning  in my old, single-famil…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2psdlZUWlhWelZ1VGxjNWJuQjFkRlJWYjBZNGJHYxAB!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CAIQACodChtycF9oOjlvVTZXVzVuTlc5bnB1dFRVb0Y4bGc%7C%7C?hl=en) — “5★ We hired Back Bay Mechanical to replace an HVAC unit in our brownstone condo in the South End. We found them after trying two other promi…”
- Furnace and gas heating repair _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNsNlk3M3VnRRAB!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgICl6Y73ugE%7C%7C?hl=en) — “5★ I had a positive experience using Back Bay Mechanical for an unexpected repair of my gas furnace in my home. Despite not being a prior cu…”
- Mini split system installation _(confidence: medium)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/braintree/profile/mechanical-contractors/back-bay-mechanical-contractors-0021-512151) — “This business was used to install a mini split system in a gut renovation for a condo in a shared small building. The owner REMOVED was caug…”
- Routine HVAC maintenance and inspection _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2w5Rk1sQkdTRkpmZDJadFlXNVdZVE5RY1ZjNFUxRRAB!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CAIQACodChtycF9oOl9FMlBGSFJfd2ZtYW5WYTNQcVc4U1E%7C%7C?hl=en) — “5★ Very thorough inspection of system. Servicer was courteous and knowledgeable. Found a problem and was able to fix during the same visit.”
- Specializes in HVAC / Heating & Cooling _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2psdlZUWlhWelZ1VGxjNWJuQjFkRlJWYjBZNGJHYxAB!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CAIQACodChtycF9oOjlvVTZXVzVuTlc5bnB1dFRVb0Y4bGc%7C%7C?hl=en) — “5★ We hired Back Bay Mechanical to replace an HVAC unit in our brownstone condo in the South End. We found them after trying two other promi…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURUbEtYUUFnEAE!2m1!1s0x0:0x49abe316dd0a1cf!3m1!1s2@1:CIHM0ogKEICAgIDTlKXQAg%7C%7C?hl=en) — “5★ My technician, Keith, was able to diagnose and fix the issues with my HVAC system in less than two hours. Six other people have come out …”
  - [State License Registry](https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page) — “MA hvac license 796-SM-B verified active”

## License

Status: **active** (#796-SM-B, hvac) — verified against the official MA state registry on 2026-07-02, never self-reported.
Re-check at the official registry: https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=Back%20Bay%20Mechanical%20AC%20Repair%20%26%20Heating&query_place_id=ChIJq33nOFV944kRz6HQbTG-mgQ): 5.0★ from 113 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Back%20Bay%20Mechanical%20AC%20Repair%20%26%20Heating&query_place_id=ChIJq33nOFV944kRz6HQbTG-mgQ): Listed on this source
- [Better Business Bureau](https://www.bbb.org/us/ma/braintree/profile/mechanical-contractors/back-bay-mechanical-contractors-0021-512151): Listed on this source
- [Better Business Bureau](https://www.bbb.org/us/ma/braintree/profile/air-conditioning-repair/back-bay-mechanical-ac-repair-heating-0021-571942): Listed on this source
- [Yelp](https://www.yelp.com/biz/back-bay-mechanical-ac-repair-and-heating-braintree-2): Listed on this source
- [Official Website](https://www.backbaymechanical.com): Self-reported profile and service details
- [Official Website](https://www.backbaymechanical.com): Self-reported profile and service details
- [Exa](https://www.thisoldhouse.com/this-old-house/season-47/needham-suburban-victorian/episode-15): 1 web mention across the open web (each linked to its source)
- [Exa](https://reviews.birdeye.com/back-bay-mechanical-170706131219754): 10 web mentions across the open web (each linked to its source)

## Mentions

Unverified third-party mentions found on the open web — relay with attribution ("a Reddit commenter said…"), never as Tavlee's own finding.

- “HVAC installation: Back Bay Mechanical” — thisoldhouse.com (2026-02-12) — https://www.thisoldhouse.com/this-old-house/season-47/needham-suburban-victorian/episode-15
- “I used Merrimack Valley Corp to replace a heat pump and they were terrible. Just my two cents.

I did have a good experience with a tech from Back Bay Mechanical, but it was just to inspect my thermos…” — a Reddit commenter in r/HomeImprovement (2016-01-13) — https://www.reddit.com/r/HomeImprovement/comments/40tveg/ma_boiler_install_help/cyx4ydc/

## Recent reviews

- **5/5 · Google Reviews · Kimberly Lemasa · 2026-03-26**: I just moved into a new place & thought I smelled gas so Back Bay Mechanical sent someone right out to check for me.  Very professional, knowledgeable and fair priced.  I highly recommend.
- **3/5 · Google Reviews · Mary Catherine · 2026-01-13**: Through the years, I’ve been pleased with Back Bay Mechanical. Even recently, Chris, the technician knew what he was doing, took time to assess the situation and to solve problems. Additionally, he was pleasant, polite, thorough and professional.
That said, when I received my bill, I was stunned by …
- **5/5 · Google Reviews · Jim Baker · 2025-12-18**: We hired Back Bay Mechanical to replace an HVAC unit in our brownstone condo in the South End. We found them after trying two other prominent service providers who were either terrible at follow up/communication or couldn't deal with an HVAC install in an old building. From start to finish, the Back…
- **5/5 · Google Reviews · john kupris · 2025-11-19**: Came quickly and did what they said they would for the price quoted.
- **5/5 · Google Reviews · Karen Chun · 2025-11-03**: What a great company.  Recently had new heat pumps, thermostats, and fans installed by Back Bay.  The owner Keith, was easy to talk to and obviously knowledgeable. The installers were very professional, efficient and cleaned up after.  Everyone at the office, who I was in contact with by phone or em…
- **5/5 · Google Reviews · csdc videos · 2025-10-30**: The work was done well and the tech answered all of our questions. Thank You!
- **5/5 · Google Reviews · Tim Sanson · 2025-09-20**: James and his team are some of the best in the business. James has helped me countless times over the years and is a stand up guy. Their work is exceptional and the staff is some of the most knowledgeable around. You can't go wrong hiring Back Bay Mechanical!
- **5/5 · Google Reviews · rich liang · 2025-09-08**: I reached out and James and the team gave me a very reasonable quote within 24hrs.

They also were able to source parts in a timely manner, when others were quoting me 6-8weeks, which was a god send when one’s AC is broken during the late summer!

The technicians also super professional, Ilir moved …
- **5/5 · Google Reviews · Jen R · 2025-09-04**: Every interaction, starting with the person who answered the phone (shout out to Nicole) was professional, diligent and knowledgeable. They delivered the repair a day ahead of schedule.
- **5/5 · Google Reviews · Chet K · 2025-08-24**: Excellent service.  On time and on budget.  Highly recommended

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Data freshness: last scanned 2026-07-02T05:09:23.871Z.
Cite as: Back Bay Mechanical AC Repair & Heating — Tavlee (https://tavlee.com/contractor/back-bay-mechanical-ac-repair-and-heating-braintree)
Source: https://tavlee.com/contractor/back-bay-mechanical-ac-repair-and-heating-braintree