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Security Accreditations


NSI Accreditation

HSi is an NSI (National Security Inspectorate) Silver accredited company. We are subject to the same technical audit and site inspections as the national companies. The silver accreditation is recognised by all insurance companies as a sign of a quality alarm installation and maintenance provider.

Police Response

We are recognised installers for the following police forces:

  • Greater Manchester Police
  • Cheshire Constabulary
  • Lancashire Constabulary
  • Cumbria Constabulary
  • Police Scotland

Product Knowledge

Our engineers are trained to use Cooper/Menvier/Eaton Security products and have completed the relevent training courses. We use CSL dual com dual path signalling as our preferred method of alarm transmission signalling equipment.


nsi approved
Emergencies / Faults - CALL - 07970 072 384
Please note: For new customers or existing customers not on a current maintenance contract we are available 9am-5pm Monday to Friday (except public holidays). We cannot guarantee to come out to you on the same day.