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Best boiler installation pros near Cos Cob, CT

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon903
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Cos Cob - Updated Nov 2026

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 Cos Cob, 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
Additional Photos
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+172

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Hillcrest Fuel, Inc.
Hillcrest Fuel, Inc.
4.6(
75
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1938

Free estimates

Emergency services offered

"They were great! Even found a way of adding a 40 gallon water heater to a smaller space. Which has been wonderful! They worked in a VERY tight space and got the job done! I highly recommend them! Will be using them to install my central air as well!"
Fujitsu Heat A/C Heat Pump
American Standard Air Conditioning
95% Alpine Boiler Nat Gas
Burnham X2 Gas Boiler
Burnham X2 Gas Boiler

+1

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Celco Heating & Air Conditioning
Celco Heating & Air Conditioning
4.3(
128
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"I had no heat and need a new boiler. I got several bids and choose Celco because they had good reviews and were no more expensive than any other, in fact were a little cheaper. I could not be happier with the final product. If you need a new boiler they are the ones to choose. They even brought me heating units while the work was getting done."
My work.
wall hung MItsubishi
various projects
various projects
various projects

+8

Response time1 day
26 neighbors recently requested a quote
Recommended by98%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 Cos Cob, CT and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"Very positive experience. They responded immediately when I sent the request. The gentleman who called asked me questions about my current setup and had a technician out promptly. The quote was reasonable and the job was completed in one day. Staff were friendly. Happy customer!"
Additional Photos
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+9

10 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 Cos Cob, 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.

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

Yes, most municipalities require a permit for propane boiler installation to ensure safety and code compliance. Permit fees vary by location and are often included in your installer’s quote, as they’ll handle the permitting process. Ensure that you always check local regulations before starting your project to avoid fines or delays.

Due to fuel line connections and venting complexity, professional installation is required for safety and efficiency.

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.

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.

Using heating oil to heat your home has its advantages, but it also has its disadvantages. 

Consider these drawbacks before installing a heating oil system:

  • Heating oil prices fluctuate frequently

  • Risk of oil spills or leaks

  • Produces more air pollution and soot compared to a gas furnace

  • Regular maintenance required for equipment

  • Need to reorder heating oil consistently to avoid running out

The Cos Cob, CT homeowners’ guide to boiler installation services

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