For over 40 years, Joseph Hotard has been handling Atlanta’s heating and air conditioning needs. As the owner of O’Callaghan Heating and Air Conditioning, Joseph has assembled a top-notch crew of experienced, licensed technicians to provide reliable, affordable, and high quality service throughout the Atlanta metro area. O’Callaghan Heating and Air is a fully-licensed, locally-owned and operated, trained, and experienced HVAC dealer and service agency with the skills and expertise to handle all the heating and air conditioning needs of your home or office. Call O’Callaghan heating and air for a free estimate. 404.577.6885

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