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Best boiler installation pros near Onset, MA

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    Average homeowner rating
  • Verified reviews icon365
    Verified boiler installation services reviews

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

Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
4.7(
168
)
Electric Boiler or Radiator Heating System - Install

Serving Onset, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1948

Free estimates

Emergency services offered

"J.T. came to evaluate installation of an over-the-range microwave. He was very thorough and explained everything so I could understand the complexities of the installation. Very friendly and competent!"
Navien Install
Backflow
Outdoor Shower
Well Tank Replacement
Filtration Installation

+62

Response time10 hrs
60 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for All Phases Mechanical
All Phases Mechanical
4.6(
233
)
Gas Boiler or Radiator Heating System - Install

Serving Onset, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1982

Free estimates

Emergency services offered

"Friendly, trustworthy people came to my home. I have had them exclusively taking care of my boiler, furnace and air conditioning unit for many years. They make themselves available and answer all calls promptly. I enjoy it went they come because they are friendly people."
Back side of units in Balle Meade
Balle Meade,Country Club
Oil to Gas Conversion
Ductless Split System
New AC Coil & Custom Duct Work

+5

Response time6 hrs
14 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Gas Boiler or Radiator Heating System - Install

Serving Onset, MA and surrounding areas

Approved

In business since 1944

Free estimates

Emergency services offered

"Expensive but professional. The electrician that did the work was excellent and seemed.to enjoy explaining what he was doing and why it had to be done that way. I felt like I learned something while he installed ceiling lights. He also cleaned up after himself like he'd never been there."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time9 hrs
Response rate97%
91 neighbors recently requested a quote
Local HVAC
4.6(
18
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Onset, MA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Called them on a Saturday, they came by with in 3 hours. They gave me a quote for new boiler said the can install it on Wednesday. Job was done, great work.. The only complaint I have is that it's been 2 weeks and the old boiler is still sitting in my backyard, not happy about that, was told twice I'll get this week then the following week. Job is incomplete... And still waiting for my receipt..."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time7 hrs
14 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Temp-Wise Heating & Cooling Corp.
Temp-Wise Heating & Cooling Corp.
5.0(
6
)
Oil Boiler or Radiator Heating System - Install

Serving Onset, MA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

With over 10 years experience Temp-Wise Heating & Cooling We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. \n\nBoilers Starting at $9900\nFurnaces Starting at $6500\nAc Air Handler and Condenser Replacements starting at $9800\nSingle Zone Mini Splits starting at $4600\n

LGred Heat Pump
Viessman VR-1 161
Improved Zone Panel
VR-1 Install
VR1 Replacement

+8

Response time8 hrs
Response rate98%
29 neighbors recently requested a quote
Avatar for R. CLAYTON HOME SERVICES, LLC
R. CLAYTON HOME SERVICES, LLC
5.0(
5
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Onset, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

R. CLAYTON HOME SERVICES, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

8 neighbors recently requested a quote
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Install Boiler FAQs, answered by experts

Scale from hard water is hard to diagnose until it starts causing problems. If your area has particularly hard water, that’s most likely what your boiler is using. If scale build-up becomes a problem, it starts to cause decreased flow and heating, and eventually, valve failures as valves become blocked. Let boiler professionals know if you’re worried about scale and they can offer advice or implement a solution.

A home radiator works by using radiation and convection to transfer heat throughout your home. Electric radiators use metal to conduct heat and warm the air, which then rises to warm the room. Steam and hot water radiators work with a boiler and piping system to pump thermal energy throughout the home. Hot water radiators use a boiler to heat the water before circulating it to the radiator, while steam heating radiator systems convert the heated water to steam before circulating it out. When the water or steam cools, it travels back to the boiler to be heated again.

Safety concerns with propane boilers include proper venting to prevent carbon monoxide buildup, secure gas line connections, and regular inspection of safety controls. Professional boiler installation and annual maintenance are essential to minimize risks. Having a carbon monoxide detector installed in your home is essential for early detection of any leaks or ventilation issues.

Coolant and antifreeze are technically not the same thing. The difference between the two is the ratio of water to other chemicals. True antifreeze is mainly made up of either ethylene glycol or propylene glycol, while coolant comprises one part antifreeze and one part water. However, the terms coolant and antifreeze are often used interchangeably, even by pros.

The average lifespan of a boiler is typically between 15 and 20 years, though some may last for as little as 10 years while others can reach 30. A boiler's longevity is influenced by several factors, including the quality of the unit, proper installation, and consistent professional maintenance.

The material also plays a significant role. Older boilers made from durable cast iron can last for over 20 years, with some functioning for up to 50 years. However, it's important to consider their lower efficiency, which can lead to higher utility bills. Modern boilers, often made from steel alloys, are designed to withstand high pressure and temperatures and have an average lifespan of about 20 years.

To maximize your boiler's lifespan, ensure it is installed correctly, have it professionally maintained each year, and address any necessary repairs immediately.

The Onset, MA homeowners’ guide to boiler installation services

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