Business Details
Emergency
services
Trusted Atlanta HVAC Services
O'Callaghan Heating and Air Conditioning Heating and Air Conditioning has been proudly serving Metro Atlanta for over four decades, delivering top-tier HVAC solutions to residential and commercial clients. Our commitment to excellence is rooted in our team of professional, trained technicians who specialize in the installation, repair, and maintenance of heating, air conditioning, and indoor air quality systems. We leverage superior workmanship and high-rated equipment to ensure reliable, energy-efficient performance tailored to each clients needs. With a focus on customer satisfaction, we offer competitive pricing, equipment warranties, and free system replacement estimates. Our Energy Savings Agreements (ESA) provide ongoing maintenance benefits, including a 15% repair discount and priority service, reflecting our dedication to long-term client relationships.Serving counties like Clayton, Cobb, Dekalb, and Gwinnett, we prioritize comfort, cost savings, and peace of mind. Our proven track record of resolving complex HVAC challenges underscores our reputation as a trusted leader in the industry. By combining cutting-edge technology with personalized service, we ensure optimal system performance and client trust. Our mission remains centered on delivering quality, transparency, and exceptional customer service, ensuring every clients comfort needs are met with precision and care.
Services
Heating Services
Air Conditioning
Maintenance
Ductless Systems
Indoor Air Quality
Commercial HVAC
System Installation
Repairs
Energy Savings Agreements
Emergency Services
Highlights and features
- Over 40 years of experience in HVAC excellence.
- Professional, trained technicians for reliable service.
- Top-rated HVAC equipment for optimal performance.
- Competitive pricing with transparent estimates.
- Free system replacement estimates available.
What people say
Excellent experience
Professional technicians
Knowledgeable staff
Great service
Competitive pricing
Services
Heating Services
O'Callaghan Heating and Air Conditioning Heating and Air Conditioning Heating & Air provides comprehensive heating system installations, repairs, and upgrades, ensuring efficient performance during colder months. Their technicians specialize in high-efficiency furnaces, offering tailored recommendations to enhance comfort and reduce energy costs. With over 40 years of expertise, they prioritize durable solutions and regular maintenance to extend system lifespans.
Air Conditioning
The company delivers air conditioning installations, maintenance, and repairs designed to optimize cooling efficiency and indoor comfort. Their team assesses individual needs to recommend systems that balance performance with energy savings. Regular maintenance ensures peak efficiency, while modular designs accommodate tight spaces without costly remodeling.
Indoor Air Quality
O'Callaghan Heating and Air Conditioning Heating and Air Conditioning enhances indoor air quality through advanced filtration, ventilation, and purification systems. Services include MERV 13+ filters, energy recovery ventilators, and PCO-based purification devices like the Reme Halo LED. These solutions target pollutants, allergens, and pathogens, ensuring healthier environments for homes and businesses.
Commercial HVAC
Specializing in commercial HVAC, the company offers maintenance, repairs, and installations for offices, retail spaces, and multi-unit complexes. Their technicians ensure minimal downtime through proactive maintenance and efficient upgrades, prioritizing energy savings and system reliability for businesses across Metro Atlanta.
Energy Savings Agreements
O'Callaghan Heating and Air Conditioning Heating and Air Conditionings ESA plans provide discounted repairs, priority service, and annual tune-ups to maintain system efficiency. Clients receive proactive recommendations to prevent breakdowns, combining cost savings with extended equipment life. These agreements reflect the companys commitment to long-term client satisfaction and system longevity.
Questions
What HVAC services do you offer in Atlanta?
We provide heating, air conditioning, ductless systems, indoor air quality solutions, commercial HVAC services, maintenance, and emergency repairs across Metro Atlanta.
Do you offer financing options for HVAC installations?
Yes, our Energy Savings Agreements (ESA) include flexible financing, 15% repair discounts, and priority service to ensure affordable, long-term comfort solutions.
Are your technicians certified and trained?
Our team includes professional, trained technicians with expertise in all major HVAC brands, ensuring reliable installations, repairs, and maintenance.
What areas do you serve?
We proudly serve Metro Atlanta, including Clayton, Cobb, Dekalb, Gwinnett, and surrounding counties for residential and commercial HVAC needs.
Do you provide 24/7 emergency HVAC services?
Yes, we offer 24/7 emergency services to address urgent heating and cooling issues, ensuring prompt, reliable solutions for homeowners and businesses.
How can I schedule an HVAC service appointment?
Contact us at 404-577-6885 or visit our website to request a free system replacement estimate or schedule a repair, installation, or maintenance visit.
Reviews (6)
Thalia Raybon
Jun 25, 2022
Report
The technicians arrived on time and worked throughout the day to finish the job in a timely manner. They were both professional and friendly. We appreciate the excellent job that they did. Service: Installation
Lorie Smith
Jun 22, 2022
Report
I always use O'Callaghan Heating and Air. The O'Callaghans are a reputable and well regarded Atlanta family. I know they will never rip me off. I had my a/c out, got the tech to come out the same day and had it fixed in 30 minutes. Great service! Service: A/C system repair
Mikel McKee
Jun 22, 2022
Report
Bobby was fantastic and walked me through explanations of what was taking place with my unit and the servicing he was providing. Service: HVAC system maintenance
Charles Mann
Jun 15, 2022
Report
The people at O'Callaghan are top notch. They answer when I call and show up when scheduled. Unfortunately, I just had to replace both air conditioning units over the last 6 months, but they made the process as painless as possible. Big shout out to Antonio for his incredible customer service in this 95 degree blistering heat.
Stephanie Cagle
May 30, 2022
Report
We've used O'Callaghan a few times over the past 4 years and have always been satisfied. I called this morning and left a message that our A/C unit wasn't cooling well. Kelly called back within the hour and said she could work us in today and would call again when a technician was headed our way. About an hour and a half later she called again to say a technician was coming. The tech arrived and diagnosed the problem (low on Freon) and fixed the A/C unit in less than an hour. Very awesome service to call at 8:30 in the morning and have our unit fixed before noon!
Kelley Conner
Apr 20, 2022
Report
Great company and employees. This is my 2nd time using them and they will now be my go to AC/Heat company from now on. Professional, fair and prompt service with very courteous employees. Services: HVAC system maintenance, Repair HVAC
