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Brian Donahue is the name on most reviews of Aquion Mechanical Group, a Stoneham plumbing, heating and cooling company he says he founded after more than a decade in the trade. Google shows 5 stars from 59 ratings, and the written reviews all date from 2026. The recurring note is that Brian doesn't push equipment. In an August 2026 Google review, a customer replacing a water heater and adding mini splits who had already gotten quotes from big-name HVAC companies said Brian explained the options without high-pressure sales tactics or upselling. A July 2026 reviewer said he quotes a reasonable fee and is never trying to sell anything. Another August reviewer had a ducted heat pump system installed and said Brian made sure it was running properly before finishing. The calls cover a wide range: a July 2026 reviewer's AC broke when it hit 100 degrees, and the company came after hours and got it running temporarily; a May 2026 reviewer had a furnace serviced at least 15 feet up; an April 2026 reviewer worked with Brian for over two weeks troubleshooting HVAC and replacing bathroom fixtures. The state registry shows Brian Donahue's Massachusetts plumber licence, 35247-PL-J, as active.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Aquion Mechanical Group LLC. 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
“Neighbors highlight work that is “quick, efficient and professional,” and describe the company as “very easy to work with.””
The owner Brian was very patient while scheduling with my tough schedule and his crew was great to work with. We would definitely hire these guys again in the future!!
I was referred to Brian at Aquion Mechanical Group when I was looking to replace my water heater and install mini splits. I had already gotten quotes from a few of the big-name HVAC companies, and not only did Brian come in with a significantly better price, but he also took a completely different approach. Instead of using high-pressure sales tactics or trying to upsell me on equipment I didn’t need, Brian took the time to explain my options, answer my questions, and let me make the decision at my own pace. I never felt pressured, which was a refreshing change from my experience with the larger companies. The installation was top-notch, everything was completed professionally, and the quality of the work exceeded my expectations. If you’re looking for honest advice, fair pricing, and exceptional workmanship, I highly recommend Brian and the team at Aquion Mechanical Group. It’s hard to find contractors you can truly trust, and Brian is one of them.
Brian and the team at Aquion Mechanical Group did an outstanding job installing my ducted heat pump system. From the initial consultation through the final startup, Brian was professional, knowledgeable, and took the time to make sure everything was done right. The installation was clean, organized, and completed with great attention to detail. He answered all of my questions, kept me informed throughout the process, and made sure the system was operating perfectly before wrapping up. It’s clear he takes pride in his work and genuinely cares about customer satisfaction. I highly recommend Brian and Aquion Mechanical Group to anyone looking for a high-quality HVAC installation. Excellent workmanship, great communication, and an overall fantastic experience. Five stars!
Brian is prompt to respond, schedules appointments and give honest professional feedback and advice on systems with a fair price. Highly recommend!
Brian was excellent! Fixed the issue completely and was in and out within an hour. Would definitely recommend Aquion services to others
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2 changes recorded — last scanned Aug 15, 2026.
Solves what others missed5.0
Prompt scheduling5.0
Fast next-day response5.0