Services of electricians; Installation of doors; Maintenance of doors; Installation of security systems; Installation of vehicle security devices; Maintenance and servicing of security alarms; Repair of security locks; Electrical apparatus installation; Maintenance and repair of electrical apparatus; Electrical installation services; Diagnosis of electrical faults; Residential, commercial and industrial installation and repair of electrical and computer wiring and cabling; Maintenance, installation and repair of electrical items and equipment; Maintenance and repair of electronic installations; Machinery installation, maintenance and repair; Maintenance, installation and repair of industrial apparatus and instruments; Repair, maintenance and installation advisory services; Repair, maintenance and installation consultancy services