Since 1973 Mullin Heating and Air Conditioning has been serving Residential & Commercial clients in the Greater Part of Oklahoma. We are a full service company operating 24 hours a day 7 days a week, we are here when you need us! If your problem is something other than heating and air conditioning, we have trained professionals to handle any job. Specializing in HVAC, Electric, Septic and Remodeling. We are your complete service solution in Broken Arrow, OK., and surrounding areas.