Get matched with top geothermal heating or cooling system installers in East Haven, CT

"They contacted me right away, set up an appointment, came and did a wonderful presentation that was on a Tuesday. I had other contractors in between. They already sent me their estimates. I waited till that Saturday. And I emailed him, that I wanted to get his estimate. Never received anything. The following Monday, I called his number. He never got back with me. I told him what I wanted. He never got back to me. On Tuesday, which would have been a week after he was here. I called H L Bowman, and spoke with somebody there. She said she would check into it, and she would have an estimate to me within a day or two. And they never got back with me. I never got an estimate. And we checked our email address. Make sure everything was good. Never received anything. And here it is like, over two weeks later and havent heard a word from them. "

"Onofreo Home Comfort Systems LLC was wonderful from the first contact in February 2026. Chris came and had a look at the house, the old system and asked what I wanted and how each room was used. He was so knowledgeable and personable. I really felt comfortable with his level of expertise. Mike & Patrick showed up each day ready to work. Mike was very communicative; letting me know when he arrived and left each day and summarizing their progress. My cat was not stressed out by their presence, which was comforting as well. The ladies in the office were so friendly and professional.The design was refined to a Bryant Heat Pump for the main level with an Ecobee Thermostat and a Bryant Mini-split in the basement. This meant that I did not lose any closet space for vents and each system is well suited for their purpose. I would definitely recommend Onofreo! They are a great company you can trust for your next project at an amazing price."

"Arrived the same day, replaced leaking unit. Very professional and neat."

"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."

"Good professional work!"

"My AC was not working Precise came out and fixed the problem . I was very pleased with the service and professionalism. I will be using for all my maintenance and repair needs."

At Complete Building and Mechanical, we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to 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.