HVAC company · Atlanta, GA

O'Callaghan Heating & Air Conditioning

4.9 from 659 Google reviews#6 of 27 HVAC companies near Atlanta Last updated Nov 1, 2026
78SCORE

At a glance

Trades
HVAC
Address
3458 Buffington Center, Atlanta, GA 30349

How the 78 score breaks down

Rating quality40.2 / 45
Review volume20.3 / 25
Review recency15.0 / 15
Years in business2.5 / 10
Verified license0.0 / 5

Scores are calculated the same way for every company. See the method.

What customers say

5★
636
4★
14
3★
1
2★
2
1★
6

Can’t say enough about O’Callaghan. There’s a reason why they’ve been our HVAC service provider for so many years: They know what they’re doing. They’re professional and highly trained. They’re honest and they do what they say they are going to do. They are available when you need them. (No need to wait for weeks fo…

Google review, Oct 30, 2026

I have worked with Ocallaghan for years and wouldn’t consider anyone else. From the professionals taking my call, scheduling, and actual repairs the staff and owners are professional and courteous. I’m never concerned they will suggest anything other than exactly what I need. I own multiple properties and Ocallagha…

Google review, Oct 28, 2026

Excellent service as always. Long time customer and couldn’t be happier with the service and provider. A++

Google review, Oct 28, 2026

Read all 659 reviews on Google

Rating distribution and reviews from the company's public Google listing.

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