Why is it important to have regular maintenance on my home comfort system?

If your air conditioner is not serviced on a regular basis an air conditioner will lose about 5% of its original efficiency for each year of operation. Taking care of your system properly will help to lower energy bills and extend the life of the equipment saving you money in the long run. Your air conditioner/heat pump insures your comfort every day. Why not be prepared to prevent issues with such a valuble component in your everyday life?

When should I replace my filters?

Decatur Air suggests pleated filters to be changed every 3 months, but check filters frequently to insure filter is not clogged.

Does Decatur Air offer service agreements?

Decatur Air offers service agreements that we believe fits your family’s needs. By maintaining your equipment you can assure yourself less cost and energy efficient equipment.

What locations does Decatur Air service?

We service these area and town and cities near and around Atlanta, Conyers, Covington, Chamblee, Decatur, Lilburn, Lithonia, Loganville, McDonough, Midtown, Monroe, Norcross, Stone Mountain, Tucker, Virginia Highlands, Walnut Grove.

At what temperature should my thermostat be set?

In the summer, Decatur Air suggests, your air conditioner’s thermostat not be set any lower than 78 degrees Fahrenheit. And as for the winter months, it should not be any higher than 68 degrees Fahrenheit for lower energy costs.

Which way should the fan be set to turn in summer and in the winter?

In the summer, in a room of normal height (8-10 ft) your fan should be turning clockwise, and in the winter counterclockwise, it pushes the warm air from the ceiling, down the walls, into the living space.

For More Information or to renew your current plan call (770)413-8000


  • Residential Services Air conditioning, Heat pump and Gas furnace installation, repair & service.
  • Commercial Services Air conditioning, Heat pump and Gas furnace installation, repair & service.
  • Indoor Air Quality we offer several types of indoor air quality products. Ultra Violet Air Sanitizing systems and more.
  • Maintenance Replacement of air filter(s), Coil and system cleaning. Inspect all parts for proper function.

About Us

About Placeholder

Jim Cronin came to the United States from Cork City, Ireland in 1986 and at that point began to provide service to the Atlanta area. By 1996, Decatur Air Conditioning & Heating was well established with a broad base of local clientele. Through honesty, perseverance, and hard work Decatur Air continues to grow. Give Decatur […]


Our Partners

We at Decatur Air Conditioning and Heating, Inc. have dealt with many types of heating and cooling products for homes and commercial applications for over 25 years. With many variables to consider while selecting the right equipment, it is important to consult with a certified professional to make certain your heating and cooling investment is wise and practical. We take great pride in the work we do, this is why we choose to work with reputable companies, such as Trane, Carrier and Heil. These companies have always been on the leading edge of technology and like us, they stand by their products. It is equally important to properly select and install the right system and maintain them regularly to insure your equipment operates as energy efficient as possible.

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