National Security Inspectorate (NSI) Gold for Fire and Security

The National Security Inspectorate (NSI) is the UK’s most highly trusted and respected, independent, UKAS-accredited certification body in the security and fire safety sector.

As a not-for-profit organisation helping to protect homeowners, businesses, the public sector and the general public, NSI count premium local providers, as well as the UK’s premier security and fire safety providers amongst their clients.

Their mission is to secure the highest standards of safety and security for buyers of commercial and domestic fire and security systems, guarding and security services, through independent, third party audit and certification in the UK and Eire.

Diamond Systems have held Gold accreditaiton for the Design, Installation and Maintenance of Electronic Security Systems for Intruder Alarms, CCTV Systems and Access Control since December 1993.

Diamond Systems have also held Gold accreditation for the Design, Installation, Commissioning & Handover, Verification and Maintenance of Fire Detection & Alarm Systems since March 2004.


BAFE is the independent registration body for third-party certificated fire safety organisations across the UK.

The BAFE Fire Safety Register offers a comprehensive record of third-party certificated competent organisations thatĀ business owners, property managers, facility managers, specifiers, and others who require assistance can use to help manage their fire safety responsibilities and obligations.

BAFE deliver and administer an extensive register of third-party certificated fire safety service organisations. End users specifying a third-party certificated BAFE registered organisation can have peace of mind that their fire safety compliance requirements are being fulfilled by a provider with quality evidence of their competency for specific services.

Diamond Systems hold BAFE approval for the Design, Installation, Commissioning/Handover and Maintenance of Fire Detection and Alarm Systems (SP203-1 scheme).

Safe T Cert

Safe-T-Cert is a third party accredited health and safety management system which is recognised throughout Northern Ireland, Republic of Ireland and GB.

The Scheme certifies the health and safety management systems of contractors and construction related companies working in the construction industry.

The aim is to assist companies of all sizes within the construction industry to continuously improve their health and safety management systems through an annual audit process.

Diamond Systems have held the Safe-T-Cert accreditation since 2005.


NVIR-O-CERT is a construction-specific Environmental Management System, which has been developed by the Construction Employers Federation (CEF) and is supported by the Northern Ireland Environment Agency (NIEA) and the leading environmental professional body, the Institute of Environmental Management and Assessment (IEMA).

The scheme provides a route for smaller construction companies to achieve environmental accreditation whilst helping larger companies to distinguish themselves as environmental leaders.



Diamond Systems are approved by Constructionline and currently hold Silver status.

Fire Industry Association

The Fire Industry Association (FIA) is the largest fire protection trade association in the UK with 1000+ members.

FIA are a not-for-profit organisation and a major provider of fire safety training

The objective of the FIA is to promote, improve and perfect fire protection methods, devices, services and apparatus. They achieve this through the representation of their members, providing technical support, guidance and opportunities for professional advancement through education and appropriate regulation.

Diamond Systems have been a member of the FIA since April 2007.

CPD CIBSE Approved

The Chartered Institution of Building Services Engineers (CIBSE) is the professional body that exists to advanceĀ and promote the art, science and practice of building services engineering, to invest in education and research, and to support our community of built environment professionals in their pursuit of excellence.

Diamond Systems have been approved to deliver CPD accredited training by the Chartered Institute of Building Services Engineers (CIBSE) since November 2019. Diamond offer a range of CPD courses on fire alarm and security system design, for engineering consultants.