Covert Security Systems

Covert Security Systems was established in 2001 and has been a member of the National Security Inspectorate (NSI) since 2006.

The National Security Inspectorate is the leading approvals and certification body that inspects companies providing home security, business security and fire safety services.

Choosing an NSI approved company ensures that the contractor you select works to the highest recognised industry standards as demanded by the Police, Fire & Rescue Services and insurance industry.

We are inspected by an approved inspector of the NSI every 6 months to ensure all office procedures, maintenance & installations are being carried out to the highest standards & comply with regulation.

NSI Silver is your guarantee you are employing an approved company where you can be confident that the installer has everything listed below.


NSI Silver

  • Has been screened in accordance with the relevant British Standard
  • Holds appropriate insurance
  • Is competent to install security systems
  • Has sufficient staff to provide the services offered
  • Operates from suitable premises with high security of documents & records
  • Can install systems that are eligible for Police Response
  • Can install systems acceptable to your insurer
  • Installs & maintains systems that are in accordance with the relevant standards
  • Is subject to regular inspection to check the standard of work
  • Issues a certificate of conformity for each system
  • Carry ID cards

David Finch (Proprietor)
Has been within the electronic security industry since 1991 and has obtained City & Guild qualifications:
City & Guilds 236 Part 1 Electrical installations
City & Guilds 236 Part 2 Electrical installations
City & Guilds 185 Part 1 Security alarm installations
City & Guilds 185 Part 2 Security alarm installations
20 years of experience with intruder alarm systems, CCTV, Entry phone systems, access control, including design, Installation and Maintenance of Electronic Security Systems.