Greatrex Alarm Systems was established in June 1988. It started as just an audible alarm company testing the water to see if there was a market in Mid Glamorgan for a small company and if we could survive with all the other Alarm companies in the area.


Serviced Areas

  • Central Glamorgan

Contact Details

  City Pontyclun
  Postcode CF72 8AZ
  Address Laurel House/Main Rd Cross Inn
  Phone Number 014 4323 7681