Profile: Comfort Experts Hobson Air Conditioning, Inc. is a full-service air conditioning & heating contractor with the ability to service and install complete heating, ventilation & air conditioning systems. We provide replacement for all cooling & heating systems. Our duct cleaning refers to the cleaning of various heating & cooling system components of forced air systems, including the supply & return air ducts, grilles & diffusers, heat exchangers heating & cooling coils, condensate drain pans and air handling unit housing.