Top-rated boiler installation pros.

Best boiler installation pros near Harvard, MA

Enter your zip and get matched with up to 5 pros

TRUSTED BY HARVARD, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon691
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Harvard - Updated Nov 2026

Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Harvard, MA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Live Your Most Comfortable Life with a Company You Trust. \nWe offer Same Day Service and Next Day Installation! \n \nSila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it?s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe ? season after season. \nWe guarantee satisfaction and are proud to have earned over 7,000 ?A? ratings on Angie?s List and its prestigious Super Service Award!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

49 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Harvard, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time2 days
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for D Day Plumbing
D Day Plumbing
5.0(
46
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Harvard, MA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Damien was able to schedule the annual/preventative maintenance on my gas boiler to meet my scheduling needs. Damien arrived on time, performed the needed service within the time and cost quoted, and educated me on the condition of my boiler. I would recommend Damien without hesitation."
Cabinet - finished product
Cabinet rebuild (before picture)
Gas Hot Water Heater Install - Power Vented
Navien Wall Hung Water Heater
3 Bay Commercial Sink Install

+32

Response time2 hrs
Recommended by100%of homeowners
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
522
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Harvard, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"I couldn't recommend these guys more. We had a 21-year old boiler replaced and upgraded, and a new hot water tank installed. I can't think of a single way they could have improved the whole process. From start to finish, they were knowledgeable, on time, clean, considerate, extremely professional and they did exactly what they said they would. The also installed a temporary hot water tank and left electric space heaters on the one night the burner was out of service. Everything is now working as they said it would, and a big bonus is their workmanship actually LOOKS great too! A+++"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
29 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Milltown Plumbing, Heating, AC, Drain Cleaning & Electrical
Milltown Plumbing, Heating, AC, Drain Cleaning & Electrical
4.4(
200
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Harvard, MA and surrounding areas

Approved

In business since 1979

Credit card accepted

Customers say: Super punctual

"As part of a second floor renovation, I needed some new baseboard heaters installed in two bedroom, a pipe connecting them relocated/replaced, and some leaky valves replaced on my boiler. Milltown was one of the only plumbing companies that actually returned my calls, and they were able to come out right away, which was great because it was almost October and was starting to get cold. They did an excellent job with all of the work, and I think the price was reasonable for what they did. They were punctual, clean, and professional. No complaints."
Additional Photos
Additional Photos
Additional Photos
8 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Domination Plumbing and Heating
Domination Plumbing and Heating
4.6(
23
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Harvard, MA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"After spending 2 days trying to find someone to replace my hot water heater, Home Advisor recommended this company. They fit me into their schedule the same day and it was installed about 4 hours after my initially contact with them. Casey and Phil were great. Had them look at a couple of other minor future projects to do while they were here. Will definitely hire them again."
Custom Work
Custom Work
Custom Work
Custom Work
Custom Work

+20

Response time4 hrs
Response rate96%
13 neighbors recently requested a quote
Avatar for Atlantic Heating & Air Conditioning
Atlantic Heating & Air Conditioning
4.1(
153
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Harvard, MA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"The removal and installation went very well. Darren, our contact, evaluated our heating requirements and specified a state of the art high efficient system as we requested. Darren and Atlantic Heating & A/C also accommodated our request to bring the system on line before the upcoming cold weather. They successfully completed the work by mid October. The removal of the old equipment and the installation of the new system went smoothy with minimum impact on our home. The crew was highly skilled and very professional. We were also grateful that Atlantic Heating prepared the application for a rebate from the gas company. We received the rebate within a couple weeks of completion of the work. In addition, Darren followed up with a recent visit to provide us with advice and instruction on the operation of the equipment. Based on our experience, I highly recommend Atlantic Heating and A/C."
Response time3 days
Response rate100%
5 neighbors recently requested a quote
Girouard Plumbing & Heating
4.8(
5
)
Gas Boiler or Radiator Heating System - Install

Serving Harvard, MA and surrounding areas

Approved

Customers say: True professional

We specialize in all phases of heating, cooling and plumbing services-- installs, repairs, maintenance, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

Recommended by80%of homeowners
Scott's Plumbing and Heating Services, LLC
4.9(
12
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Harvard, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Emergency services offered

"Have used Scott a few times already. Great service. Needed a shower valve replaced. Used him to install a new under the cabinet kick plate heater. Also needed some old cast iron radiators disconnected and the feeds and returns disconnected when we switched over to a new system. Highly recommend"
Response time4 hrs
Response rate89%
16 neighbors recently requested a quote
...
Showing 1-10 of 124
Install Boiler FAQs, answered by experts

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

Overall, heating your home with an oil furnace tends to be less expensive than heating your home with an electric heating system. Oil heating systems stay warm for longer periods of time without drawing a constant electrical current to maintain a temperature. Plus, heating oil systems typically have a longer lifespan and lower price tag than their electrical counterparts, resulting in short- and long-term savings.

In most cases, repairing a radiator is more affordable than replacing it. A typical repair may cost between $100 and $200, while a replacement can average $1,500, with a range of $250 to $2,500 depending on the unit type. Radiator issues are often simple fixes for a professional, such as a blown fuse, malfunctioning thermostat, or a loose valve, and can take less than an hour. However, if the long-term costs of fixing the radiator are higher than replacement, it's better to get a new model. It is recommended to consult a heating expert to diagnose the problem and determine the best solution for your situation.

Professional HVAC installation requires licensed expertise in several areas, including electrical- and plumbing-related work. An HVAC team must know how to safely handle regulated refrigerant chemicals and the gas, oil, or propane used in furnaces and boilers. A proper HVAC installation protects your home from energy loss, fires, and even carbon monoxide leaks.

Most home boilers will need an expansion tank. That’s because these boilers are closed-loop systems, where the water is trapped. An expansion tank is needed when the boiler heats the water and it expands, allowing air to condense in the tank to make room for the water. Other types of boilers don’t use an expansion tank, such as traditional steam boilers, but these aren’t as common. And hot water tanks may be able to use a pressure release valve instead. When in doubt, call in a pro to take a look.

The Harvard, MA homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.