Cost of Door Access Control
across the UK

# Door Access Control Accreditation Guide

The main UK trade bodies and regulatory schemes relevant to door access control include the Security Industry Authority (SIA), which oversees security operatives and companies providing manned guarding and electronic security services, and the National Security Inspectorate (NSI), a third-party certification body that audits and certifies security companies against BS 7499 and other relevant British Standards. The British Security Industry Association (BSIA) is the trade association representing the security industry and promotes professional standards. Additionally, the Loss Prevention Certification Board (LPCB) certifies products and services to specific security standards, whilst BS EN 62368-1 and other relevant British Standards provide technical and safety requirements for access control systems. For door access specifically, providers may also hold relevant qualifications in CCTV installation, fire safety integration, and data protection compliance under GDPR. Understanding what each accreditation means helps you identify whether a provider has undergone independent quality audits, maintains insurance, and adheres to industry codes of practice.

To verify a provider's credentials, you should request their accreditation certificates and check them directly on the issuing body's website—the SIA, NSI, and BSIA all maintain public registers of approved members and certified companies. Ask specifically which standards they are certified against and when their certification was last renewed; accreditation typically requires annual audits or reassessment every three years, so outdated certificates are a red flag. Request evidence of public liability insurance, employer's liability insurance if they employ staff, and confirmation that any operatives hold valid SIA licenses. It is also worth checking whether they are signed up to a relevant Approved Code of Practice and whether they are members of an Alternative Dispute Resolution scheme. This verification process matters because accredited providers are independently assessed for competency, financial stability, and adherence to legal and ethical standards