Installation, repair, and maintenance of systems and devices that use infrared, radio frequency or low voltage wire technology and computer hardware and software and systems to coordinate, control, enhance, streamline and report status of the operation of television, CATV, audio/video, lights, temperature, heating, ventilation and air conditioning equipment, electronic lock, smoke and fire detectors, mini-bar, access doors, doorbell, motorized drapes, internet access devices and other mechanical and electrical or electronic systems and services in commercial and residential buildings and the hospitality, health care and educational industries