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Alarm Systems and Software

Alarm systems provide the first line of defence for any site, providing both a deterrent and an early warning system. Well designed systems will result in intruders moving on before even attempting to break in. However, for persistent criminals, alarms will be activated immediately a fenceline or building is breached and a response made before any damage is done.

Tailored Intruder Security Systems For Your Sites

Intruder systems can be complicated and may need many layers of interconnecting protection to provide the level of security required. G4S has many years experience in specifying, installing and supporting intruder systems to a diverse range of markets and critical infrastructure. Whatever your system needs, G4S can help.

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Design, Installation & Support

  • Work only with the leading intruder system manufacturers
  • Systems designed using the latest technology
  • Expert and experienced design team, with many years of experience designing and supporting intruder systems for Enterprise and Critical Infrastructure organisations
  • Can be integrated with a larger security system to leverage the benefits of all system elements


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Perimeter Detection


Fenceline Hardening


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Remote Security Services

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