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Best boiler installation pros near Manchester, CT

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TRUSTED BY MANCHESTER, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified boiler installation services reviews

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

Avatar for Atlantic Water Heater Pros
Atlantic Water Heater Pros
4.8(
51
)
Gas Boiler or Radiator Heating System - Install

Serving Manchester, CT and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Bruce and Bill of Williams and Associates Mechanical Contracting recently removed and replaced my 18 year old oil fired boiler and added an indirect fired water heater. I had been saving for this project for over a year and had been geeking out in my avid research (Thanks Internet!) of products available, reviews and costs, as well as the reputation and reliability of local heating and plumbing contractors. I knew what I wanted, I just needed to stay within my budget and find a contractor I could trust. It is therefore, my pleasure to let others know, on the same web review sites that I referred to, how overwhelming pleased I am to have worked with Bruce Williams and his team. They skillfully removed and installed the heating system in a day, took pride in their work and took the time to explain the new system and to fully answer all my questions. Bruce and Bill clearly like what they do for a living, have great people skills and work very well together. I was able to get the very best of products and still come well under budget. I cannot thank these guys enough! Honest, Professional and Reliable! My dusty, unfinished basement with my new Viessmann boiler, Carlin burner and HTP indirect fired water heater is now my favorite part of the house!"
Large Mechanical Room
Response time1 day
Recommended by92%of homeowners
Borselle Plumbing & Heating LLC
4.9(
34
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Manchester, CT and surrounding areas

Approved

In business since 1989

Emergency services offered

Warranties offered

"Joe and his crew did an excellent job installing new boiler and indirect hot water system. I made the decision to convert to gas and replace my 21 year old oil fired boiler. Everything went along smoothly and professionally. Joe kept me informed every step of the process and job was completed on time. I would definitely recommend."
Response time2 days
Response rate100%
1 neighbors recently requested a quote
Avatar for Island Mechanical Services, LLC
Island Mechanical Services, LLC
5.0(
20
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Manchester, CT and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"Bertram was very professional and very careful with bringing in and taking out old and new boiler. When coming in and out layed cloth to protect flooring etc I highly recommend him. I was given several quotes in a timely manner and he was very honest and helpful in helping me to make my decision to have him install the bolier. Will recommend him to friends and family."
Response time1 day
9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Advanced Mechanical Services LLC
Advanced Mechanical Services LLC
4.8(
19
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Manchester, CT and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Advanced Mechanical Services (AMS) went out of their way to get our new oil tank installed and the old one removed in the winter. We were experiencing issues with our old tank where our oil company could not fill the old tank. AMS worked closely with us to install the new tank quickly. They kept us in the loop and were on time on installation day. The installers were professional, kept us informed and did an excellent job. In addition, they cleaned up after themselves. We also use them for our annual furnace cleaning. They always do a great job and have come out on emergency calls a few times over the past 25 (or more) years. I highly recommend them."
Response time11 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for WB Dickenson
WB Dickenson
4.5(
121
)
Boiler or Radiator Heating System - Install or Replace

Serving Manchester, CT and surrounding areas

Approved

In business since 1952

Free estimates

Emergency services offered

"HIGHLY recommend! needed a kitchen faucet replaced. sent in request on home advisor at 730am. got a call at 8am to confirm time table and also a rough quote for the work needed. got a call at 830 from Ed that he was coming in 30min. Work was completed perfectly in less time than quoted and price was under initial quotes which i appreciate. I had a quote from aiello at 7am for over $1000 more than this job. I bought my own faucet for this saving some money, but ultimately saved $1000 paid $220 for visit and work completed. ABSOLUTELY recommend Ed and this company for any needs."
 Lennon - Sterling Accord
 New Laminate counter
 Fully remodeled kitchen
After
 Lennon - Complete Remodel

+40

Response time6 hrs
1 neighbors recently requested a quote
Recommended by96%of homeowners
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Install Boiler FAQs, answered by experts

The best time of year to purchase or replace an HVAC system, including components like an air conditioner or furnace, is during the off-season—spring and fall. During these periods, HVAC professionals are less busy than in summer and winter, when extreme temperatures create urgent demand. Shopping during the off-season can lead to savings of 10% to 15% on an AC unit and allows you more time to find the best deal and other cost-saving incentives. Typically, air conditioning units go on sale in the fall after demand drops, while furnace prices tend to decrease in the spring.

Boilers provide even heating, energy efficiency, and a quiet operation compared to forced air systems.

Depending on the size of your home and system, as well as any upgrades or add-ons you choose, it may take between three and five days to completely replace an existing HVAC system from start to finish. Your contractor should be able to give you an estimate before they begin the actual replacement.

Costs range from $3,000 to $7,500, depending on system size and efficiency.

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.

The Manchester, CT homeowners’ guide to boiler installation services

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