Protech Alarms Ltd. is a NSI (National Security Inspectorate) Gold Standard company. Baed in Essex, the company specialises in installation and regular maintenance of high quality security installations (intruder alarms, fire alarms, CCTV and door access) throughout the M25 northeast region. Protech Alarms Ltd. materials are supplied by companies with a proven track record of robust and reliable designs, such as Bosch, Siemens, Castle & Risco.