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3458 Buffington Center, Atlanta, GA 30349


Proudly serving Atlanta for over 50 years

For the past five decades, O'Callaghan Heating & Air has provided excellent heating and air-conditioning (HVAC) services to Atlanta and the surrounding metropolitan area.

Square Square

- Excellent customer service

- Trained and certified professionals

- Top brands

- Competitive pricing

- High quality work

- Solid reputation

- Free estimates

What we offer:

You'll find that our quality work, fair prices, and superior knowledge of the industry are all key factors, contributing to customer satisfaction. We offer only the best heating and air-conditioning (HVAC) services to both residential and commercial properties. Excellence is our standard.


Contact us for your FREE estimate today.

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