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A 2022 customer's drain repair wasn't urgent, and they still got a callback right away and a next-day appointment. Five of the eight people who have written about ComfortCool Mass mention that same thing — how quickly the phone was answered and how soon someone showed up. The Quincy company is listed on HomeAdvisor with HVAC and hydronic services, six years of experience and free estimates, and its listing names HVAC, hydronic systems and steam heating among the work it takes on. Its HomeAdvisor rating is 4.9 from eight ratings, 88% of them five stars. The written reviews run from 2020 to 2023. A 2020 homeowner who used the company several times wrote that it explained everything in a way they could understand and arrived when it said it would; another 2020 review said the job was done right, so there was no need to call back and have it redone. The newest, from July 2023, named Giovanni Colon and called him competent, informed and well spoken. The one wrinkle comes from that 2022 drain job: the work took a little longer than the customer anticipated, though they wrote that the charges held to the original quote. Ask for a realistic time estimate up front on anything bigger than a service call. BuildZoom lists a plumbing contractor licence and a heater contractor licence, both #34896, plus a plumbing licence #4665, and shows 16 projects for the company. Check those numbers on the Massachusetts register yourself, and ask for a certificate of insurance while you're at it. If you have a steam or hydronic system in the Quincy area, this is a fit — settle scope and timeline in writing before anyone starts.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from ComfortCool Mass. 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
Giovanni Colon was extremely competent, informed and well spoken. I would definitely recommend him.
They called very quickly and arranged to come the next day, even though our drain repair was not urgent. Very neat, professional work. The work took a little longer than anticipated, but the charges were based on the original quote. I am very happy with my new drain!
Reliable and trustworthy. I would recommend.
He was efficient. And now I have a controller that works.
Excellent customer service, the detail is great, very responsive and professional.
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1 change recorded — last scanned Sep 17, 2026.
Transparent diagnostics5.0
Broad plumbing and HVAC range5.0
Repeat, years-long customers5.0
Water heater and boiler installs5.0
Decades-long customers5.0