4.6 
1.2k+ *The Angi rating for Boiler Installation companies in Ansonia, 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 Ansonia, 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 Ansonia, CT and surrounding areas
Approved (Corporate)
In business since 1946
Free estimates
Emergency services offered
"Yes, one day install conversion from tank electric to tankless gas with water softener"
+6
Serving Ansonia, 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 Ansonia, 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 Ansonia, 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 Ansonia, CT and surrounding areas
Approved
In business since 1938
Free estimates
Emergency services offered
"Installed new oil fired boiler. Excellent job replaced zone valves and left work area very clean, I would highly recommend if replacing your heating system."
+1
Serving Ansonia, CT and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"Furnace was not operating because the company's automatic delivery system ran me out of oil.
Technician showed up promptly and got the furnace operating but could not get heat into the house. Had to reschedule to have zone valves replaced. Technician show up late and didn't have the required parts. Had to reschedule again.
The third technician showed up on time with all the correct parts and worked most of the day to get the system operating properly.
He was completely knowledgeable and very conciencious that everything was working correctly.
"
Serving Ansonia, 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 Ansonia, CT and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"Knowledgeable and friendly from initial consultation to installation. Very happy with Air Inc."
+35
Serving Ansonia, CT and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"Perfect as I expected and more. East Coast installed a central air system and a ductless heating and calling system in my house. They were much affordable than their competitor."
+5
Serving Ansonia, CT and surrounding areas
Approved
In business since 1976
Free estimates
Emergency services offered
"Thorough explanation, great service, neat installation and competitive pricing. Would hire again."
+8
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