37
Antenna installation and repair; computer installation and repair, fire and/or burglar alarm installation and repair; furnace installation and repair; installation and maintenance of burglar and/or fire alarms; installation and repair of air conditioning apparatus; installation and repair of business and office machinery and equipment; installation and repair of freezing apparatus; installation of computer networks; installation of computer systems; installation of security systems; installation of telephone lines; installation of theft prevention devices; installation, repair and maintenance of heating equipment; installation, repair and maintenance of low voltage wiring; installation, repair and maintenance of central vacuum systems; installation, repair and maintenance of electrical home automation systems; installation, repair and maintenance of structured wiring, satellite dish installation and repair; telephone installation and repair; installation, repair and maintenance of home theater systems; installation, repair and maintenance of audio systems for vehicles, residential and commercial usage