4.8 
12 *The Angi rating for Heating And Air Conditioning Service companies in Belfast, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Belfast, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on February 23, 2026
Serving Belfast, ME and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"These people were very professional and efficient. They kept us well informed throughout the process from initial estimate through electrical work to final Installation. I would not hesitate to recommend them to anyone."
+36
Serving Belfast, ME and surrounding areas
Approved
In business since 2015
Emergency services offered
Credit card accepted
"Completed work in a timely manner and to my exact specifications. Highly recommended."
Serving Belfast, ME and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
Residential and commercial installations of furnaces, boilers, heat pumps, and central air conditioning. I would be happy to help you make your home more comfortable and efficient. The best way to contact me is via telephone 207-820-0404. Thanks
Serving Belfast, ME and surrounding areas
Approved
I am a seasoned plumbing and heating professional with 15 years of industry experience, specializing in the service and installation of residential plumbing and heating systems. My expertise includes heat pump installation and maintenance, as well as comprehensive home water treatment solutions. I am dedicated to delivering high-quality workmanship, reliable system performance, and exceptional customer service on every project.
Serving Belfast, ME and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
Serving Belfast, ME and surrounding areas
In business since 2017
Free estimates
Small jobs welcome
"I needed my dryer vents cleaned. They showed up when they said they would and got the job done at a reasonable price."
+13
Serving Belfast, ME and surrounding areas
In business since 2020
Emergency services offered
Warranties offered
"hire him to do your HVAC projects. really nice guy and goes way beyond the call to get the job done."
Serving Belfast, ME and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"Everything went better than I could have expected, they were punctual, efficient and friendly. Will seek them out first every time."
+2
Serving Belfast, ME and surrounding areas
In business since 2002
Free estimates
Emergency services offered
"I called Octagon the day after we had an upstairs water leak. The next day, Octagan had scheduled a technician to assess the damage and set up the mitigation solutions to dry out the damage before mold could set in. Everyone from Octagon was friendly, professional and very responsive. If you need a fast, reliable and effective response, you will find it with Octagon!"
+2
Serving Belfast, ME and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"Mr. Ferrell worked with my husband over the phone to fix the problem. It was surprisingly fast and stress-free. To have the work done remotely in less than an hour was wonderful."
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