4.6 
977 *The Angi rating for Boiler Installation companies in Bethany, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
*The HomeAdvisor rating for Boiler Installation companies in Bethany, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
Last update on October 17, 2025
Serving Bethany, CT and surrounding areas
Approved (Corporate)
In business since 1946
Free estimates
Emergency services offered
"Outstanding service and professional installation!!"
+6
Serving Bethany, CT and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"Williams & Associates installed a Buderus oil-fired boiler and stainless-steel chimney liner. Bruce's design was a significant upgrade over my 35-year-old boiler system. He clearly explained the process and installation, and he was receptive to my questions. Bruce is knowledgeable, straightforward, and responsive. The price was very fair, considering the quality of the work and other estimates I had gotten. I would not hesitate to recommend Williams & Associates."
Serving Bethany, 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."
+172
Serving Bethany, CT and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Prompt, efficient service --- Technically knows gas furnace products --- More importantly knows the economics of keeping up with repairs on a 30 year old unit vs going with a new unit --- Not a sales pitch -- just facts ---- Went new and the cost including nicely done installing was much lower than I originally thought it would be . Review by Clark D. in Madison CT"
+4
Serving Bethany, CT and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"Very professional installation. Was done in a timely fashion and the crew was very professional and clean. Huge difference in the comfort of our home now."
Serving Bethany, CT and surrounding areas
Approved
In business since 1938
Free estimates
Emergency services offered
"Very knowledgeable. We had a couple of issues after installing a new furnace and Matt came right away. Best estimate."
+1
Serving Bethany, CT and surrounding areas
Approved
In business since 2018
Free estimates
Small jobs welcome
"I chose them to put new central air in my home one year ago and I was impressed with the way they conducted themselves so now they are my go to for Boiler repair also."
+27
Serving Bethany, CT and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Big job one day removed and installed a home central AC system. A few miscommunication issues. I made a punch list of concerns and sales is working on them. Always returned my calls promptly. Waiting for manuals and installation paperwork."
+24
Serving Bethany, CT and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
Frisco Mechanical is dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty, integrity and transparency. We specialize in central Air Conditioning and cooling systems as well as all types of heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
Serving Bethany, CT and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Very professional experience with radiant heat oil burner servicing, cleaned and replace filters, nozzle selected correct nozzle size for boiler, did though cleaning, did efficiency test and air flow regulation adjustment. Little pricier than other service calls I made in the past but definitely knowledgeable."
+35
From average costs to expert advice, get all the answers you need to get your job done.
The average boiler installation cost depends on size, system type, and other factors. Keep reading to learn the cost of a new boiler.
Discover the average electric boiler installation cost, key price factors, and ways to save. Get transparent, expert-backed estimates for your project.
Get the facts on propane boiler installation costs. Learn what impacts your price, compare options, and budget confidently for your home upgrade.
Looking for a qualified boiler installation pro? Learn how to find and hire the right professional, from credentials to questions to ask.
Installing a boiler requires care and precaution. Use this checklist to install a boiler safely.
Installing a boiler DIY isn’t recommended without the proper skills and experience. Learn how to safely install a boiler in this guide.
