
Full Service Plumbing, Sewer Main - Clear, Excavation - Sewer and water line replacements/repairs , and 2 more
"I would highly recommend this company. Eric was fantastic starting with the initial visit and throughout the entire process. Showed true care and compassion when no other company in the area did. Completely replaced my 50+ year old boiler and hot water heater for a lower price than another company wanted just for a new boiler replacement. Positive all around experience with this company!"
Lorraine D. in November 2019

Electrical repair and troubleshooting, 10+ years of electrical experience, Electrical repair and troubleshooting , and 3 more
"Ryan did excellent work. He explained everything so I could understand it. In just a few hours he rewired my electric heating system in my duplex. For the first time since I moved here (14 months) my heat is completely off !! I would give him 10 stars if it was possible, but here I would give him 5 stars."
Thomas M. in January 2024
Sheetrock/painting, Siding, Roofing , and 7 more
"The job William and his team did for me was phenomenal . They removed old kitchen cabinets, prepared the walls, fixed a few spots, mounted new cabinets, new dishwasher and other items. They were fully equipped, including with an impressive laser measuring device for a perfect measurement accuracy., I very much appreciated Williams daily update on the progress. The project was completed on-time as predicted Michael A."
Michael A. in February 2024
"Eric was extremely thorough in examining and checking my thermostat and heating system. He was also quick to diagnose and fix the loose wires that were found. All in all a great experience and would hire again !"
FCCF09384E551DEECE7D48FBA406A9B31CAFAB64EAD9BD8D4040D524D6E18D34 2. in August 2025
Plumbing, water heater repairs and replacements, boiler repairs and replacements , and 2 more
"Nick replaced our water heater. We were very pleased with his work. He was very efficient and punctual, explained everything clearly. We certainly will recommend him to others, and will use him for any future plumbing needs."
Joseph O. in May 2019

HVAC
"We had Chris replace a decades-old gas furnace and electric water heater, as well as install central air conditioning. We talked to a few professionals in HVAC, and Chris seemed to have encyclopedic knowledge of it all. At a very fair price, Chris spent two days having the old stuff professionally removed, getting the new stuff (AC) wired up, and all the new equipment installed. This was a problem-free project from start to finish, and we would strongly recommend Chris to anyone with similar needs."
Donald S. in November 2018
Reliable, Honesty, Custom
"Outstanding service, great communication, I would highly recommend them."
Heather O. in September 2022
Plumbing
". This company has done a plethora of work for myself and my family. He has installed appliances such as dishwashers, washer and dryers, garbage disposals, faucets and sinks, a hot water heater, and a gas boiler. He is very trustworthy and knowledgeable about what he does and stands by his work. If there is an issue, he will get back to you and fix it in a timely manner. His pricing is reasonable and he does excellent work. I would recommend anyone to use him."
Marie .. in June 2018

Heating and cooling services
"Jistin's team did a great job diagnosing the issue with my HVAC SYSTEM. They provided me with several options tontonrepaormor replacement of the system. In the end indecdied to repair my system and J&M quickly orde4es and installed the needed parts. After a couple of days my system was repaired operating better than anticipated."
Don N. in July 2021
Heating, Cooling, Plumbing , and 1 more
"Best experience I could hope for. I hired them to repair our forced air heating system which has the habit of breaking down every winter. Their technician, Shawn, showed up on a Friday night and came back over the weekend to diagnose the problem and make sure we had heating and hot water over the weekend. He was able to understand and fix a problem that three other "specialists" over the years had completely missed. What's best is that he did it all quickly and without taking any special credit. Apparently (I thought) the other guys just were competent enough!"
Gabriele D. in December 2010

In business since 1949
Furnace & Heating Install, Repair, Maintenance, AC Install, HVAC - Cooling & Heating Systems and Mini-Splits , and 7 more
About us: "Gem Plumbing and Heating is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!"
Swansea Heating & Furnace Contractors are rated 4.8 out of 5 based on 1918 reviews of 1918 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
If you're looking for Heating & Furnace Systems Contractors that serve a different city in Massachusetts, here are some popular suggestions:
Find additional Massachusetts Heating & Furnace Systems Contractors
Find out how HomeAdvisor can help your business