Verified record
Gem Plumbing Heating Cooling is a New Bedford heating company. Its Massachusetts HVAC licence, number 803-SM-B, is active on the state registry, held by Gem Plumbing & Heating CO LLC. On Google it averages 1.5 stars from 2 ratings. A 2025 customer with no heat and no hot water said a tech arrived at the last possible moment of the time frame given, said the CO2 was too high on a system that had not run in about 8 hours, and recommended replacing the 12-year-old boiler. That customer said they paid $149 and he left. The same 2025 customer wrote that another company then found the problem, an intake shroud that had slipped down on its mount, and that they had heat in 5 minutes.
“Gem has been around since 1949. The firm works in both the residential and commercial markets, providing heating, cooling, plumbing, as well as drain cleaning, electrical, fire suppression, and mechanical services.”
No heat ,no hot water, called gem ,came at last possible second of time frame given.tech came in with co2 meter. says Co2 is way to high on a system that hadn't run in approx 8 hour.calls his boss and recommends replacement because of age of boiler (12yrs).pay my 149 dollars and he leaves..I then called RCLmechanical.the cane diagnosed the issue .I had heat in 5 minutes .THE ISSUE GEM MISSED the intake shroud had slipped down on mount .in short Gem sucks and I had to pay 149 dollars to find that out
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Gem Plumbing 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
Specializes in
Languages
1 change recorded — last scanned Oct 9, 2026.
Fast water-heater work4.8