Christie Intruder Alarms Ltd design, install and maintain security systems: access control, burglar alarms, CCTV, fire alarms, fire extinguishers, locks, safes, gates - in fact, anything and everything for your electronic or physical security "Secure Your World". We've over 45 years of expertise. We're ACPO compliant, NSI NACOSS and Fire Gold certificated, and BAFE SP203 approved. CIA is renowned for quality, service and innovation. No wonder we're the UK's largest independent security systems installer! Based in Waterlooville near Portsmouth in Hampshire, CIA provides 24 hour cover right across the South Coast and Southern Home Counties including Berkshire, Dorset, East Sussex, Hants, Surrey, West Sussex and Wiltshire, 365 days a year.