4.6 
1.5k+ *The Angi rating for Boiler Installation companies in Bellingham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
*The HomeAdvisor rating for Boiler Installation companies in Bellingham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
Last update on January 19, 2026
Serving Bellingham, MA and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1948
Free estimates
Emergency services offered
"WORK NEEDED TO DO INSATLL WENT WELL. INSTALLER WAS VERY INFORMATIVE.EXPLAINED EVERYTHING NEEDED FOR THE JOB IN DETAIL. VERY PROFESSIONAL."
+62
Serving Bellingham, MA and surrounding areas
Approved
In business since 1928
Emergency services offered
Warranties offered
"Not easy finding an HVAC company willing to install a gas steam boiler. These guys did it all and did it well, removing the old oil burner and oil tank, installing a Weil McClain boiler including steam piping and hot water, installing gas piping, electrical and plumbing, including all inspections, even leaving me a temporary hot water heater until the furnace installation was completed. They fully accommodated my schedule as well. The town electrical inspector who came after installation was complete confirmed their good reputation."
Serving Bellingham, MA and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
Endless Energy is a trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts with office in Marlborough, Needham, and Randolph. Specializing in Heat Pumps, Central AC, Furnaces, and Boilers, we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation.\n\nWe can help you with: \n*Heating Repairs, Installation, & Service\n*AC Repairs, Installation, & Service\n*Plumbing Repairs, Installation & Service\n*Water Heater Replacement & Service\n*Indoor Air Quality Solutions\n*Ductwork & Line Set Solutions\n*Electrical Panel Upgrades and Replacement\n*Insulation \n*No Cost Home Energy Assessments\n\nA Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!
Serving Bellingham, MA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Chris and his team were a pleasure to work with on our hot water tank and boiler replacement project. We are very happy with the results and look forward to working with them again on future projects."
+14
Serving Bellingham, MA and surrounding areas
Approved
In business since 1944
Free estimates
Emergency services offered
"Extremely friendly service. Prompt and professional. It was a little more expensive than I thought it would be to swap out a light/exhaust fan, but the work was excellent and I would hire again in the future."
+56
Serving Bellingham, MA and surrounding areas
Approved
In business since 1997
Free estimates
Customers say: Quality work
"First of all I requested quotes from 3 different plumbers to replace a water heater and install a pressure reducing valve. Todd was very professional, honest and very reasonable priced. He did an excellent job and went above and beyond my expectations. He will be my go to from now on. I HIGHLY recommend him to anybody looking for quality work at a great price."
+10
Serving Bellingham, MA and surrounding areas
Approved
In business since 1975
Free estimates
Emergency services offered
"Burke was able to come out within 2 days to do routine service on my boiler. He also bled all the lines. Very pleasant and communicative!"
+19
Serving Bellingham, MA and surrounding areas
Approved (Corporate)
In business since 1928
Free estimates
Emergency services offered
"It took a while to get job completed but install went well"
Serving Bellingham, MA and surrounding areas
Approved
In business since 2000
Free estimates
Customers say: Quick response
"Amazing experience all around. Easy to schedule and to work with, good deal and amazing work installing a tankless water heater. I will definitely call for any future needs."
+3
Serving Bellingham, MA and surrounding areas
Approved (Corporate)
In business since 2018
Free estimates
Emergency services offered
"We hired Loudon Mechanical to install Daikin mini-splits in our home. The quote was reasonable. Each person in their crew was courteous, prompt, and efficient. They completed our job in two days and left the job site clean. W are extremely pleased with Loudon Mechanical and would highly recommend this company."
+19
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