AT Mechanical, Heating, Cooling, Custom Duct Work

Welcome to the AT Mechanical LLC website

Keep cool in the summer and warm in the winter with our premiere HVAC services. At AT Mechanical LLC, we specialize in heating and air conditioning service for both residential and commericial systems.

Our highly-qualified technicians have over 30 years of HVAC experience in the following:

  • Installation and repairing of residential and commercial heating and air conditioning units

  • Custom duct work

  • Servicing and maintaining all brands of equipment

  • Installing geothermal heat pumps

Our fast, courteous service and unparalleled expertise have made us the favorite heating and cooling company serving all of CT. Your comfort is our goal, and we'll work until your are satisfied with the heating and air conditioning service provided. We also provide emergency service 24 hours a day, 7 days a week.

Geothermal Installation

The best thing about AT Mechanical is that you could trust them. They're dependable, they show up on time and call me back when I have a problem. You always know you're getting top of the line service at a fair price. I've been using them for years and I would never think about using anyone else when it comes to my heating and ac needs
- Robert from Rocky Hill

You guys did a great job installing my new high-efficiency gas furnace. I know I'll be getting a return on my investment in no time especially with the high price of heating this winter. thanks!
- Diane from North Haven

Click here for more testimonials

AT Mechanical LLC
303 Murphy Rd.  •  Hartford, CT 06114  •  Hartford Tel. 860-241-8907  •  Waterbury Tel. 203-879-6561  •  Fax 860-882-1098  •  Email