Verified record
Back Bay Mechanical is a Boston-area HVAC company covering the full range of home heating and cooling work — furnaces, boilers, heat pumps, ductless mini-splits, high-velocity systems, even geothermal and snowmelt driveway systems — with 24/7 emergency service. Massachusetts lists its HVAC license, 796-SM-B, as active. It carries a Better Business Bureau A+ grade and was featured by This Old House in a February 2026 piece on an HVAC installation. The reviews, 100 of them since 2023, describe a company that takes on jobs other HVAC outfits turn down or botch. Several customers specifically say they came to Back Bay after other companies couldn't handle an install in an old building or misdiagnosed a problem. A 2024 review said a technician fixed an issue in under two hours after six people from other companies had failed to; another described the owner personally responding within a day to a broken heat pump during a heat wave and having a replacement installed within two weeks. Named staff — James, Chris, Keith, and office coordinator Nicole — get repeated praise for communication and follow-through, and multiple commercial property managers say they use the company across several buildings. One serious complaint stands apart from the rest: a Better Business Bureau review described the owner using profanity and derogatory language toward a building resident while on site installing a mini-split system during a gut renovation. That's a specific, credible account worth knowing about, even though it contradicts the tone of the Google reviews. A separate 2026 review, otherwise positive about the technician's own work, mentioned being surprised by the final bill without giving specifics. For a complicated HVAC job — an old building, a system other companies couldn't diagnose, or an emergency — the technical record here is strong and well-documented. Given the one account of unprofessional conduct from the owner, it's reasonable to ask directly about who will be on site and to get pricing confirmed in writing before work begins.
“Back Bay Mechanical”
“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 thermostat.”
“HVAC installation: Back Bay Mechanical”
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.
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 the exorbitant cost, $535.00, that BBM charged for a thermostat which can be purchased online or in stores for $385.00 less than what I was charged. (plus there was an additional $149.38 installation fee) [Best Buy and Walmart $139.99, HVAC Home Safety $131.50, Amazon $149.99 } Prior to my appointment, my thermostat had not been working properly so, in anticipation, I purchased one exactly like the one I had. But later, based on conversations with the technician and my neighbor, I switched to the Honeywell T6 . When I received my bill, I was shocked to see a charge of $535.00 for a thermostat that other websites charge no more than $150.00. Through phone calls and emails, I requested BBN adjust the charge. Crickets. In short, I think paying $535.00, a $385.00 or more markup for a $149.99 thermostat, is usurious price gouging.
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 Bay team was great. They clearly knew what they were doing, were comfortable navigating the peculiar space limitations of the building design, acquired the right equipment fairly quickly, and the install went super smooth. They were organized and clean, and communicated well throughout the project. When they left, it was like they had never been there (except we finally had reliable heat). They even rehung the drop ceiling where the interior unit was replaced. We will definitely be using them for maintenance going forward, and would highly recommend them to others.
Came quickly and did what they said they would for the price quoted.
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 email, is very nice and helpful. Truly, I felt I was in good hands with them.
Specializes in
Also offers
Service area
Languages
2 changes recorded — last scanned Jul 2, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Back Bay Mechanical AC Repair & Heating. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
Furnace and AC installs brought fully up to code3.7
State-verified HVAC license2.3
72 years in business2.6