Verified record
GEM Plumbing and Heating is a large, long-running HVAC, plumbing, and electrical company headquartered in Raynham, with branch offices across Rhode Island, Massachusetts, and Connecticut — over 700 employees and roughly 500 trucks on the road. The company says it was founded in 1949 by Larry Sr. and Gloria Gemma and describes itself as family-led today, though independent reporting names HomeX Services Group LLC as its parent company as of a 2023 Providence Business News article — the "family business" framing sits alongside real institutional ownership behind the scenes. Google shows 1,011 ratings averaging 4.8 stars, and the pattern across dozens of recent reviews is speed and communication. Homeowners describe technicians arriving the same day for a dead water heater or a failed AC condenser, walking through the diagnosis before starting work, and cleaning up after themselves; several single out individual technicians by name for explaining a repair in plain language before doing it. One recent review described a team replacing rooftop AC units across two condo units, coordinating closely with a crane crew and an electrician. Not every account is glowing. A 2026 one-star review described a sewer pump replacement that ran past $3,200 in diagnostic and repair fees and then failed again within a month; a separate two-star review called the charge for a ten-minute install excessive. In a March 2026 Reddit thread, a poster said GEM was the only company that would come out when their boiler died 3 days before Thanksgiving, and that it cost them 13k. In a December 2025 r/massachusetts thread, another poster wrote, "don't use Gem plumbing and heating they suck." The BBB rates GEM A- and lists it as accredited, but also shows 50 complaints on file — a real number, worth weighing against a company handling this much volume. GEM's Massachusetts plumbing license (2763-PL-C) is active on the state registry, and the company offers free estimates on new installations along with 24/7 emergency service. For a homeowner in Raynham or nearby who needs a fast HVAC or plumbing fix, GEM is a large, established operation with a strong recent review record. Worth asking for a firm price up front given the handful of billing complaints, and worth knowing it now operates as part of a larger corporate group rather than purely as the family shop its marketing describes.
“We used Gem Plumbing . They weren't our first choice, but we just moved in and our boiler died 3 days before Thanksgiving and they were the only ones that would come out. Cost us 13k”
“don't use Gem plumbing and heating they suck”
“Gem plumbing and heating Quoted me $ 20,000 for a new boiler. Not included in that quote was having the water service into the house updated, the chimney relined, and a couple odds and ends that would have been close to $30,000.”
“HOMEX SERVICES GROUP LLC, the parent company of GEM Plumbing and Heating, recently leased office space in the River Place Office Building”
“GEM Plumbing & Heating, Capital Good Fund, Green Energy Consumer Alliance, and Abode Energy Management are partnering with Rewiring America to offer qualifying households a new heat pump HVAC system at a 20-30 percent discount.”
“With 165 trucks, GEM Plumbing and Heating (www.gemplumbing.com) is the largest commercial and residential service fleet of its kind in Rhode Island, and one of the largest in the nation.”
“Gem Plumbing and Heating Services, LLC, paid $6 million to buy a similar business (Rusty’s, Inc.) from Michael Roderick and Thomas Hansen. According to Gem, Roderick and Thomas Hansen knew but did not disclose that th”
The GEM techs were outstanding. They arrived early and did a thorough evaluation of our heating system. We. Have been very please with the professionalism, courtesy, and timely service GEM has provided us in the past and today. We are pleased we secured the maintenance plan. It is nice to know your home will be well protected. 5 stars+. Thank you.
Workers were capable, efficient, polite, and friendly. A pleasure to work with
Very nice man and very efficient
My water dies last night and GEM had a tech on call that came over assessed the situation and emptied the tank to avoid further issues . This morning the installation team arrive early, explained what could be done and went about replacing my tank. It was a smooth process which was appreciated given the circumstances. The techs were great and very personable. The left the site clean and made sure I was all set before leaving.
Always reliable , professional and excellent customer service.
Specializes in
Also offers
Service area
2 changes recorded — last scanned Sep 18, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from GEM Plumbing and Heating. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
Languages
Languages
Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
Verified active license4.8
Old-house re-piping4.1
On site within an hour for a burst pipe3.8
Told customers a repair wasn't needed3.4
Burst-pipe response with a prompt arrival2.6
Weekend emergency calls3.7
Gas water heater failure handled fast3.4
