Tri-County Aire – delivering comfort
with care for over 24 years.

Southern Maryland's Heating, Air Conditioning & Geothermal Contractor

We know your air conditioning and heating needs are unique to you as an individual, family or business. The design of your system, the selection of quality equipment, expert installation, reliable and efficient customer service, and competitive prices are all factors to consider when selecting the right HVAC contractor. Obviously, you want the best value today and long term energy savings on future utility bills. For over 24 years, we've been installing and maintaining heating and cooling systems in St. Mary's, Calvert, Charles and Anne Arundel county Maryland.

Explore our site and learn more about who we are and what we can do to bring comfort to your home or business.

Take advantage of our Spring & Fall Rebates – special savings on system installations and more.

Get more information on our financing your new installation.

Find comfort year round with an energy-efficient Trane system. You can control your comfort inside the home and remotely. Read more.		Tri-County Aire is Green! Click here to learn how you can go green and reduce your heating and cooling costs.		Find replacement media purchase links under the Products tab.
		30% Federal Tax Credit available for Geothermal System Installation
State-of-the-Art GPS Dispatch System enables Tri-County Aire to provide timely heating and air conditioning service calls in Southern Maryland. Our dispatchers monitor their computer screens to know exactly where each tech is so that all of our calls are better managed. When a customer calls, we know instantly if they are next to be serviced. We send the customer's address to the truck's GPS showing the service tech the shortest route and directions optimizing travel routes and communication.