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St. Jean Heating & Cooling describes itself on its Better Business Bureau profile as providing heating, cooling and ductless mini-split services, including boilers and forced-air furnaces for residential and light commercial customers. It holds an A+ grade from the Better Business Bureau and is BBB accredited. In a 2024 Google review, a customer said they called in the morning, got a same-day visit, and had how their heating worked explained and their problems solved immediately. Another 2024 review said they quickly diagnosed and fixed the customer's AC. In a 2025 review, a customer described Ray as a reasonably priced and highly efficient plumber who fixed an issue that 3 other plumbers could not. A 2026 review said Ray went above and beyond to help the customer out in a pinch. A December 2025 Reddit poster in r/somerville who uses the company said he is very affordable and does a quality job, though incredibly overworked.
“I use St Jean Heating and cooling. He is incredibly overworked, but very affordable, and does a quality job.”
“Ray from St. Jean Heating and Cooling is really good. Does great work.”
Ray went above and beyond to help me out in a pinch. Would highly, highly recommend.
Ray is a reasonable priced and highly efficient plumber. He fixed an issue that 3 other plumbers could not. I would highly recommend him!
Really wonderful service - I called this morning, got a same-day visit, and they explained how my heating worked and solved my problems immediately. Such a nice experience and they're my go-to from here on out!
Was able to quickly diagnose and fix my AC. Provides excellent service!
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2 changes recorded — last scanned Sep 26, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from St. Jean Heating & Cooling. 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
Transparent diagnostics5.0
Same-day and weekend calls for burst pipes and lost heat5.0
Broad plumbing and HVAC range5.0
Repeat, years-long customers5.0
Water heater and boiler installs5.0
Master plumber on every job3.8
Same-day repair4.6
