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Best boiler installation pros near Ivoryton, CT

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon472
    Verified boiler installation services reviews

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

Avatar for Cawiamca Heating, Cooling, and Electrical
Cawiamca Heating, Cooling, and Electrical
5.0(
97
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Ivoryton, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"CAWIAMCA did an outstanding job installing 2 high efficiency ductless mini splits – 1 at each end of my house. The owners Ron and Jeremy worked with me patiently on the system sizing and selection process, rebates from my power company, income tax credits, etc. Everyone on the installation crew was polite, conscientious, and knowledgeable. They came back next day to complete the installation of the second system despite snow and freezing rain!!! This company is well equipped to do the job efficiently. CAWIAMCA's price was much lower than the other 2 contractors I got estimates from (who planned to use concrete blocks to support the outdoor condensers). CAWIAMCA used quality steel bases with tall legs to support the condensers and keep them higher up away from snow, leaves, mice, etc. Nice looking installation. I could not be happier with a company. :-) CAWIAMCA!!!"
Variable Refrigerant Flow Cold Weather Heat Pump in East Lyme
VRF Cold Weather Heat Pump in Groton
Additional Photos
Additional Photos
Response time8 hrs
34 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Atlantic Water Heater Pros
Atlantic Water Heater Pros
4.8(
51
)
Gas Boiler or Radiator Heating System - Install

Serving Ivoryton, 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
1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Cawiamca, LLC
Cawiamca, LLC
5.0(
43
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Ivoryton, CT and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Jeremy came the evening of the day I called him accommodating my schedule. It wasn't even an emergency, at least I didn't think it was. I called for a cleaning but he immediately identified a problem I didn't know I had. He walked me through the diagnostic, described and demonstrated the problem, quoted the job and when I accepted it he performed the repair. When he left my boiler was working efficiently. The boiler was working but the heated water wasn't circulating through the baseboard. I was constantly burning oil with minimal effect. It had felt drafty in the house and I was relying largely on a gas fireplace to take the chill out of the air. That's no longer the case, the house is warm. He's coming to clean the boiler Wednesday evening. I will never hire anyone but Jeremy again to maintain my boiler."
Steam Boiler
New Boiler Install
New Home Saybrook
Custom built in in progress
Addition in progress

+2

Response time4 hrs
Recommended by100%of homeowners
Avatar for The Guild
The Guild
5.0(
4
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving Ivoryton, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

The Guild 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 work smart, and it gets done right.

Response time1 day
Recommended by100%of homeowners
Avatar for HARP Home Services LLC
HARP Home Services LLC
4.5(
488
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Ivoryton, CT and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"The representative came on time and listened carefully to my thoughts of a split ductless system. He suggested full house central air and showed me how it could be done, have ducts i stalled and cost less than a ductless system. His experience of over 20 years as a technician as well gave me a lot of confidence. He made a general proposal and came back in a few days for my convenience and I signed the contract. The duct crew finished in one day and were careful, explained things and left no mess. Then the ac was installed and tested in one day. Again polite, clearly communicated. Once the system started up late spring I am so glad I did this! No more noise from room ac, no shutting doors to keep one room cool. The humidity is normal and makes a huge positive difference. I highly recommend HARP. I switched my heating system to them as well after my experience with the AC i stall. Thank you HARP!"
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+9

Recommended by93%of homeowners
Showing 1-10 of 38
Install Boiler FAQs, answered by experts

Oil boilers provide reliable heating, efficiency, and long-term cost savings compared to electric options.

The best time to buy home heating oil is in the summer when the demand is lowest, as the prices are usually lower. However, waiting until the summer to buy is often unavoidable unless you install a separate storage tank. If you have the space for a second tank, you can expect to pay between $1,000 and $4,000 for the oil tank replacement or installation, depending on the capacity and location. You could quickly recuperate these costs, though, by stocking up on heating oil in the summer and avoiding deliveries in the winter when prices are highest.

Yes. In many cases, switching from an old furnace to a high-efficiency boiler can help you save money over time. You can also save money by switching from an electric boiler to a gas boiler, which costs much less compared to the energy bills an electric boil can create. Boilers are often (but not always) more efficient than furnaces, too. Then there are discounts, rebates, and incentives that can help you save on the initial costs.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

The Ivoryton, CT homeowners’ guide to boiler installation services

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