---  Security Services  ---

Integration between different security types and demands has become common place among the needs of our customers. As a company, we have a vast experience of high security integration from intruder systems and access control to CCTV and Fire. We have many sites that integrate more than one discipline.


  • CCTV meaning Closed Circuit Television has opened up to everyone from small households to corporate companies. We provide and maintain every level of CCTV.
  • All types of systems are installed and maintained from IP, hybrid analogue / IP and analogue.
  • Whether your needs are a simple system or a quote for a larger commercial solution we at ‘Three SG’ can provide the expert advice for all your needs.

Intruder Alarms

  • We Install, service and maintain domestic and commercial Intruder alarms to the relevant European or British Standards in accordance with our Inspectorate the ‘NSI’ (NACOSS).
  • All types of communication for insurance requirements can be provided ranging from: A Speech Dialler, WEBWAY, ‘REDCARE’, ‘DUALCOM’,’FREECOM ‘ and Digital Communicator via our remote monitoring control centre.
  • All levels of service are provided from Police to Key holder only response.
  • With our valid maintenance contract starting at £80.00 + VAT, a 24 hour call out service is provided, giving you complete reassurance that if a problem does occur an engineer is always on hand.
  • We are insurance accredited - so no job is too small or too large!

Fire Alarms

Due to the Fire Reform Act, the safety of a company’s employees from a fire has fallen to the responsible person. This could be the Director/s of a small company through to a facilities manager. If you are unsure who is the responsible person DO NOT leave it to chance, you could face a criminal prosecution!

  • As a company we provide fire risk assessments, installation and maintenance/monitoring of fire alarms in accordance with BS5839.
  • From small non addressable/2 wire systems to large multi zone addressable systems, we provide full design, testing and commissioning of systems. Along with maintenance contracts giving you piece of mind, we also offer access to our 24 hour call out service.

For information or a survey please contact us.

Door Access

Securing a door to unwanted intrusion can be a simple matter of an audio entry system to a fully biometric, integrated and remote monitored access control system. Now if that sounded like a foreign language then please speak to our dedicated team who can tailor a system to your requirements.

We support existing systems and we can provide a maintenance service giving peace of mind and quick response to your problems.