Why Choose an NSI Approved CCTV Installer?
What does NSI approval actually mean when choosing a CCTV installer? We explain the standards, independent assessment and ongoing oversight behind NSI certification and why Closed Circuit Security Ltd has maintained NSI approval since 2004.
What Is the National Security Inspectorate (NSI)?
The National Security Inspectorate (NSI) is an independent UKAS-accredited certification body operating within the UK security and fire-safety sectors. NSI provides independent third-party certification for companies that install, maintain and monitor security systems.
By assessing companies against applicable industry standards and scheme requirements, NSI provides independent assurance to commercial and domestic customers. NSI operates different electronic security schemes, the most common being Systems Silver and NACOSS Gold.
Closed Circuit Security Ltd holds NSI Systems Silver approval and operates across North Wales and the North West of England, providing professional CCTV design, installation and maintenance services.
What Does NSI Systems Silver Approval Mean?
NSI's Systems Silver approval criteria require certified companies to meet applicable scheme standards and relevant Codes of Practice. For commercial and public-sector organisations procuring CCTV, this provides independent verification that the installer is working to recognised technical requirements.
For CCTV systems specifically, the criteria include compliance with NSI NCP 104 Issue 3. This is the official NSI Code of Practice detailing the requirements for the design, installation and maintenance of CCTV systems.
Note: A specific sub-category of detector-activated CCTV systems claiming compliance with BS 8418 are covered separately by the applicable BS 8418 requirements. Not every commercial CCTV installation is a BS 8418 system, and technical specifications are determined based on the site assessment.
How Does NSI Approval Benefit CCTV Customers?
NSI approval provides independent third-party assurance that an approved company is working to the standards and Codes of Practice applicable to its scope of approval. For the customer, this delivers several practical benefits.
Independent Assessment
The customer does not have to rely entirely on the installer's own marketing claims. Competence and processes are verified by an external UKAS-accredited certification body.
Technical Standards
Approved work within the scope of certification is subject to relevant technical standards and NSI Codes of Practice.
Professional System Design
The framework involves requirements affecting areas such as surveying, design and specification, meaning systems are planned properly before equipment is installed.
Personnel Requirements
Applicable personnel security-screening requirements form part of the approval framework for people involved in security-system work.
Ongoing Auditing
Approval involves ongoing assessment rather than simply paying a one-time membership fee. NSI carries out ongoing audits and re-certification as part of maintaining approval.
Maintenance Standards
The NSI requirements extend into servicing and maintenance, providing a technical framework for ongoing support rather than merely regulating the initial installation.
NSI Approval Covers More Than Installing Cameras
NSI's Systems Silver criteria cover the complete lifecycle of a security system. A successful commercial CCTV installation involves substantially more than fixing cameras to a wall. The framework evaluates technical competence across activities including:
- Surveying
- Designing
- Installing
- Testing
- Servicing
- Maintaining
Professional system design involves conducting a site assessment, determining optimal camera positioning, calculating required fields of view, evaluating lighting conditions, specifying appropriate recording and storage capacity, and configuring network infrastructure.
You can read more about how this technical planning is applied in practice in our guide detailing how professional CCTV systems are planned and installed, or review the different types of CCTV systems available for commercial premises.
Professional CCTV Design and Documentation
NSI approval also involves professional documentation and business processes. NSI's published Systems Silver technical requirements state that prior to installation commencing, there should be either a signed acceptance of the contract or, where oral acceptance has been given, written confirmation of that acceptance.
This structured approach aligns with Closed Circuit Security's own business processes. We provide applicable contractual Terms & Conditions to the purchaser before they sign the Acceptance of Order, allowing the customer the opportunity to read those terms properly before entering into an installation contract.
CCTV Standards and Data Protection
Professional CCTV design needs to recognise data-protection responsibilities. NSI technical documentation acknowledges that system specifications should draw attention to these obligations.
Operating a surveillance system often involves processing personal data. Organisations must ensure they operate their systems in compliance with the UK GDPR, the Data Protection Act 2018, and relevant guidance from the Information Commissioner's Office (ICO).
For an overview of how this legislation affects the operation of commercial surveillance, see our guide to CCTV, UK GDPR and ICO compliance.
NSI Silver vs NSI Gold: What's the Difference?
Customers evaluating security providers may see both NSI Silver and NSI Gold logos. These represent different levels and scopes of certification, rather than implying that Silver is an inadequate standard.
- Systems Silver: Provides independent third-party certification against the applicable technical scheme requirements, relevant technical standards and Codes of Practice. Closed Circuit Security Ltd holds NSI Silver approval.
- NSI Gold: Schemes at the Gold level include the same technical standards but add specific ISO 9001 quality-management-system certification requirements.
Systems Silver demonstrates technical competence and adherence to the appropriate engineering Codes of Practice for electronic security systems.
Why Closed Circuit Security Joined NSI
Closed Circuit Security Ltd joined NSI in 2004. We chose to participate in independent third-party certification to demonstrate our commitment to professional standards and technical competence.
By maintaining this relationship alongside our professional CCTV systems installation work, we provide our commercial and public-sector clients with the confidence that our engineering practices, system designs and maintenance procedures are subject to consistent external assessment.
You can learn more about our company history and experience on the About Closed Circuit Security page.
Our NSI History
2002
CCTV installation experience begins
February 2004
Closed Circuit Security Ltd formed
2004
Joined NSI
Today
NSI Silver Approved
Choosing an NSI Approved Commercial CCTV Installer
When a business or organisation requires a new surveillance system, NSI approval can be a useful factor when evaluating a CCTV installation company. Certification should also be considered alongside the installer's experience, system-design capability and understanding of the customer's premises.
A successful installation relies on the company's understanding of your premises, their ability to produce an appropriate system design, the clarity of their quotation, and their capacity to provide dependable ongoing CCTV maintenance.
Closed Circuit Security Ltd has extensive experience installing CCTV across demanding environments, working regularly with schools, warehouses, industrial sites, and commercial organisations.
Frequently Asked Questions About NSI CCTV Installers
What does NSI stand for?
NSI stands for the National Security Inspectorate. It is an independent UKAS-accredited certification body for the security and fire safety sectors in the UK.
What does NSI Silver Approved mean?
It means the installer has been independently assessed and certified by NSI against specific technical scheme requirements, working to relevant industry standards and Codes of Practice (such as NCP 104 for CCTV systems).
Is NSI approval required for CCTV installers?
No, NSI approval is not legally mandatory for all CCTV installers. It is an independent third-party certification that demonstrates a company's conformity with applicable scheme requirements within their approved scope.
What is the difference between NSI Silver and Gold?
Both schemes assess against the relevant technical standards and Codes of Practice for electronic security systems. NSI Gold schemes add an additional requirement for ISO 9001 quality management system certification.
Does NSI inspect approved companies?
Yes. NSI approval requires companies to participate in an ongoing audit and assessment programme, with re-certification forming part of maintaining approval.
Does NSI approval cover CCTV maintenance?
Yes, the NSI Systems Silver criteria and the NCP 104 Code of Practice cover activities including the surveying, design, installation, testing, servicing, and maintenance of CCTV systems.
Can I check whether a CCTV installer is NSI approved?
Yes, you can check an installer with the National Security Inspectorate by using the official company directory on the NSI website.
Is NSI the same as the SIA?
No. NSI provides independent certification for security companies regarding technical and operational standards. The Security Industry Authority (SIA) is the statutory organisation responsible for regulating and licensing individual security operatives carrying out specific manned guarding and public-space surveillance activities.
Talk to an NSI Approved CCTV Installer
Closed Circuit Security Ltd provides professional CCTV design, installation and maintenance across North Wales and the North West. Contact our team to arrange a site survey for your commercial or public-sector premises.