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

"I'd become increasingly concerned about the company I was using for my AC and heating needs. When I knew we needed a lot of work doing, I decided to search for a new company that I could trust. We needed to get 4 new AC units installed. They were 17 years old and leaking, so we took the plunge and decided to replace them. I had a lot of questions around the systems in my house and what to install. During my phone conversations Donny was extremely helpful and patient. He answered all my questions and I believe that he gave me honest suggestions on the best solutions for my home and living situation. I found him to be honest, trustworthy and very knowledgeable. The install went smoothly, one of the units was tucked away in a tight closet in my daughters room, and they dealt with that easily. They installed 4 new controllers. They were tidy, and worked long hours to get the job done. In addition they spent time explaining the new systems to us and answering questions of ours that arose. We are really pleased with the new systems and controllers, we have peace of mind that we've installed good, reliable systems, and that we have a great company looking after our AC and heating needs. I also hired them to do annual service visits for our heating and AC. So far they have performed the winter maintenance visit, and identified a couple of things that needed addressing to prevent possible problems this winter. What they recommended made sense to us, and we thought they were valid and worthwhile repairs. As we trust this company, we decided to go ahead and get the work done. Chris D came to do the repair job. He was very friendly, helpful, hard working, and did a great job. He also took time to make sure we knew what was going on. I'm hugely relieved that I found this company. It's increasingly rare to find companies to help out in the home who are good at what they do, honest and trustworthy. I highly recommend them. BTW I'm also impressed with their office support staff. They are super friendly and helpful, calling back when they say they will. Booking appointments is super easy with this company."

"Yes, one day install conversion from tank electric to tankless gas with water softener"

"very efficient and friendly service.
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"It got done, unfortunately required a full system replacement."

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.

"We were very happy with the service we received from Ramon, Jr., and their crew. We had our 35 year old heating and cooling system replaced with a new high efficiency system. It was a big job and everything was done neatly and works great!"

"Tech found that thermostat had hidden switch under cover. He suggested a better quality programmable thermostat which he installed & is running great."

"Matt was very professional and extremely courteous. The job was done in a timely manner and most importantly, effectively! My heat is up and running like new, just in time for the winter season ?"

"There team did an amazing job, moving the dryer out, replacing tubes as needed, and going into attic, and outside to clean the vents, as well as thoroughly cleaning the inside of the dryer. Moved everything back perfectly, and left the place spotless. Dryer functioned 100x better."

"MJS heating and air conditioning responded to my help on Angi within an hour. Mathew was very professional and serious about his work. Estimate was very realistic, and presented in the easy way to understand the problem. Installation was done within a few hours, and everything got nicely back in order- clean and warm house! I am very happy with the work of MJS- I will call them for the yearly maintenance on my furnace and AC. The only regret that I have is that I wasted my whole day getting estimates from different businesses that were 50-60% higher! ????????"