4.5 
1.1k+ *The Angi rating for Boiler Installation companies in North Haven, 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 North Haven, 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 North Haven, CT and surrounding areas
Approved (Corporate)
In business since 1946
Free estimates
Emergency services offered
"Outstanding service and professional installation!!"
+6
Serving North Haven, 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 North Haven, CT and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"Very please with the install. Vin was very professional and applied due diligence to the project. His oversight and instruction provided the reinsurance that needed. I requested four heating and AC vendors to provide proposals. Tyler was most responsive to my questions and offered me alternatives along with helpful suggestions. My next project is my boiler. I will be turning them in the future."
+172
Serving North Haven, CT and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Mike contacted me within minutes of my request. It was the day after the coldest day we've had and we thought we would have to wait for an appointment. I explained that we had no heat Mike told me that he could have someone over within 2-3 hours. He told me what the cost would be which was very reasonable. Joe arrived as scheduled, fixed the problem and cleaned up the area. Within 2 hours our boiler was back up and running. I would highly recommend Mike and MTL and we will be using them to service our boiler for our future needs"
+4
Serving North Haven, CT and surrounding areas
Approved
In business since 1938
Free estimates
Emergency services offered
"Matt and his team did a fabulous job replacing and installing our oil furnace. He also helped with other issues that we were having with our heating and cooling system for years. Very conscientious, courteous and keeps a the place clean,"
+1
Serving North Haven, 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 North Haven, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Emergency services offered
"The boiler installation job was done great. I even accepted an annual service plan to keep up with proper maintenance. They are wonderful to work with."
+22
Serving North Haven, 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 North Haven, 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 North Haven, 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
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