O'Callaghan Heating & Air Conditioning
O'Callaghan Heating & Air Conditioning is a HVAC provider serving Atlanta, GA. Rated 4.9★ with 605 Google reviews. See services, review signals, and request a quote.
HVACAtlanta, GA
On this page
Company overview
- TradeHVAC
- Service areaAtlanta, GA
- Google rating4.9★ (605 reviews)
- Phone(404) 577-6885
- Address3458 Buffington Center, Atlanta, GA 30349, USA
Photos
Photos from O'Callaghan Heating & Air Conditioning
What customers say
“Ocall was out at our place today and as usual - always does a great maintenance job. They keep us running efficiently season to season. They staff top notch folks in the office and the field. Ou…”
“The heat decided to go out when we are experiencing the coldest weather in awhile. The boys from o’callaghan had us up a running quickly. Great customer service and support. Will recommend them to fam…”
“I historically worked with a different company for many years, and when my AC unit stopped working, they left me hanging for 2 weeks with no communication and no shows on two appointments. I found O’C…”
“These guys were awesome. They came out right away, fixed and explained the issue, and did not look for a way to upcharge the service like a lot of hvac techs tend to do. It was a great experience all …”
“Greg was outstanding. He knew what was wrong and how to fix it. He also spent time with me explaining how to use the new thermostat.”
Key highlights
Strengths
- Highly rated (4.9★ average)
- Large review volume (605 reviews)
Things to ask
- Confirm availability for your area and timeline
- Ask about warranty terms on parts and labor
- Request a written estimate before work begins
- Ask about payment plans or financing
Explore nearby research
Frequently Asked Questions
What services does O'Callaghan Heating & Air Conditioning offer?
O'Callaghan Heating & Air Conditioning provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Atlanta, GA.
What is O'Callaghan Heating & Air Conditioning's rating?
O'Callaghan Heating & Air Conditioning has a 4.9 out of 5 star rating based on 605 Google reviews.
Is this company licensed in Georgia?
All listed providers have a verified Georgia contractor license at time of publication. You can verify on the Georgia State Construction Industry Licensing Board — Division of Conditioned Air Contractors lookup at https://verify.sos.ga.gov/verification/.
Does O'Callaghan Heating & Air Conditioning offer emergency service?
Contact them directly to ask about emergency availability and after-hours service.
How do I request a quote?
Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.
Licensing verified 2026-04-23. Reviews refreshed 2026-04-23.
Licensing data: Georgia State Construction Industry Licensing Board — Division of Conditioned Air Contractors · Company data: verified business records + Google Business profile
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