Welcome to the Air conditioning & Heating Contractors group of SmartGuy.com, Feel free to interact with other Professionals from across the world. You can find professionals, find deals on services, find professionals who might barter, or simple post questions, comments, or suggestions. Air conditioning, often referred to as AC, A/C, or air con, is the process of removing heat and moisture from the interior of an occupied space, to improve the comfort of occupants. Air conditioning can be used in both domestic and commercial environments.