O'Callaghan Heating & Air Conditioning

O'Callaghan Heating and Air Conditioning is a family-owned Atlanta HVAC company with more than 40 years of service that provides residential and commercial heating, air conditioning, installation and replacement, maintenance, ductless systems and indoor air quality solutions; O'Callaghan Heating and Air Conditioning offers 24/7 emergency service across the Metro Atlanta area, emphasizes professional trained technicians, upfront pricing and equipment warranties, and operates from its Buffington Center office to deliver reliable, customer-first heating and cooling services.