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Best boiler installation pros near Danbury, CT

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TRUSTED BY DANBURY, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified boiler installation services reviews

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

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Danbury, CT and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"They responded to my home quickly and professionally. The technician was very knowledgeable and candid and saved me unnecessary expenses. They fixed the issue and has our ac back up and running within an hour and made sure everything was clean before they left. Will definitely recommend them."
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Tyler Heating, Air Conditioning and Refrigeration LLC
Tyler Heating, Air Conditioning and Refrigeration LLC
4.6(
132
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Danbury, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"I always trust Chris as my technician to deliver superb service re: my furnace/boiler, hot water tank, split A/C system, and dehumidifier. It's a pleasure to greet him semi-annually, since he's courteous, pleasant, and professional, and since he answers all my questions re: my heating and cooling systems. I trust this talented tech being inside my home and tuning up all these systems. Kudos to Tyler Heating & A/C for hiring Chris as its employee."
Carrier Ductless Heat Pump Condenser
Carrier Performance Ductless Heat Pump High Wall Air Handler
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+172

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Danbury, CT and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I called All Weather to give me a quote for replacing my gas boiler. They set up a time for their salesperson to come over and give me a quote. The appointment was only a few days later and a man named Joe showed up on time. He spent some time with me, I told him I was looking for a new boiler and a new hot water heater, but I wanted to see what options I have (since I was debating going to a tankless water heater). He told me going indirect hot water tank is the best option and they always use this brand that's the "best one out there". Even though he may have been right, he didn't tend to my questions or concerns very well. I felt like he was getting annoyed that I had questions and eventually I just let him run the show just to get him out of my house faster. Especially when he gave me a quote of $8600, it was much higher than I was anticipating. One thing I really didn't like was when he said I'd have to get a permit since I live in an incorporated village, which would be an extra $500, meanwhile I already had another plumber tell me a permits only $200. So I went with another company. So even though I can't rate All Weather on their work quality, I didn't get a good feeling from their salesperson."
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Kelley's Heating & Cooling, LLC
Kelley's Heating & Cooling, LLC
4.9(
11
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Danbury, CT and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"I looked at over 10 different mini split installers over a year and had just about given up. It wasn't until I found Kelley's Heating & cooling. They were honest up front and worked directly with an electrician (who also did an amazing job!) to quote me the best price. Mariana in the office worked directly with me to ensure I got all the Energize CT rebates pre-approved and factored into my quote. By far there team was light years ahead of all the other installers I met with who didn't even include electrical. The fact that they are Fujitsu certified was also a big win in my book. I can't say enough positive things about the installation team. They were professional, clean, and organized. Within about 4 hours they had my new mini split wired in looking great and sounding super quiet. Would highly recommend this team."
Response time1 day
13 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for J Thurston Fuel
J Thurston Fuel
5.0(
4
)
Boiler or Radiator Heating System - Install or ReplaceGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Danbury, CT and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"We hired thurston to power wash our house. The job took about 3 hours. They did a fantastic job! They power washed and scrubbed the house deck and even the driveway and sidewalk as well as the roof. Their attention to detail was outstanding! The siding looked like new, the deck was spotless , just a great job. Based on their work power washing our house I would definitely not only recommend them to power wash your house but I highly recommend them to do other jobs which I intend to do. This company definitely cares about delivering quality work to their customers. job title was not available in list so it was just chosen randomly. Actual job was power washing."
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+9

9 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Pack-Timco Heating & Cooling
Pack-Timco Heating & Cooling
5.0(
1
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Danbury, CT and surrounding areas

Approved

In business since 1967

Free estimates

Emergency services offered

Pack-Timco, LLC Heating and Cooling is one of the oldest and most reputable HVAC companies for over 50 years. Starting in 1967, Pack-Timco, LLC Heating and Cooling begun as a one-man, one-truck service operation by Lawrence C. Pack.\nPack-Timco is a full-service heating and cooling company serving residential and light commercial customers throughout Fairfield and Westchester counties.\n\nWe understand the demands of high-end residential design: discreet elegance, architectural harmony, and absolute performance. That’s why we specialize in tailor-made HVAC systems that integrate flawlessly into even the most ambitious homes.

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

One of the easiest ways to determine which type of furnace will work best for your home is to contact a professional in your area. Many HVAC companies offer free consultations to help potential customers determine if they need a new system and which type would work best for their home and the community’s climate.

Yes. Boilers need water to run without overheating, also known as dry firing. If you run it without a sufficient volume of water, either because of a burst pipe or a leak, you run the risk of damaging your machine or jeopardizing the safety of your home as a whole. When in doubt, shut off your boiler and repair any plumbing issues before turning it back on. Alternatively, consider installing a low-water cutoff (LWCO) before any issues arise. This gadget will protect your boiler by monitoring water levels and automatically shutting it off if it gets too low. 

The primary differences between a heat pump and a boiler are their function and how they produce heat. A heat pump is a versatile system that provides both heating and cooling by moving ambient air and altering its temperature. In contrast, a boiler is solely a heating system, often working with a furnace or AC unit as part of a larger HVAC system. In terms of heat production, a heat pump generates heat more slowly and at a lower temperature, requiring a large convector for distribution. A boiler, however, produces a large amount of high-temperature heat that it emits through smaller radiators.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

If you want a new boiler that’s going to help lower your fuel bills, you should buy one that has a high energy-efficiency rating. For example, a boiler that is rated “A” uses at least 90% of the energy created by the boiler. And in order to enjoy the best performance, it’s important to have it installed properly by a highly-rated tech.

The Danbury, CT homeowners’ guide to boiler installation services

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