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October 2026

Top 5 passive fire protection companies in the United Kingdom

Of the 108 passive fire protection companies in the United Kingdom listed in the OpenFire directory in October 2026, these profiles were viewed most by people and AI assistants.

  1. #1

    Crown Fire Systems logo

    Crown Fire Systems

    Professional fire door & fire stopping surveys delivered in accordance with UK Building Regulations and third-party standards. BlueSky Certified Fire Door & Firestopping Installer.

    Contractor 6–20 people Est. 2024 1 office
    Compartment walls & cavity barriers Fire & smoke dampers Fire door inspection & survey +4 more
    Rainham View company

  2. #2

    Treliving real estate logo

    Treliving real estate

    Building Safety

    Est. 2022 1 office
    Building safety disputes Compartmentation Compartment walls & cavity barriers +7 more
    Bristol View company

  3. Joint #3

    AP

    AFS Passive Systems

    Belfast passive fire protection specialist working across the UK and Ireland.

    Contractor Est. 2018 1 office
    Compartment walls & cavity barriers Firestopping PFP survey & inspection +1 more
    Belfast, Northern Ireland View company

  4. Joint #3

    TN

    Terry Nicolls SBA Facades Edinburgh

    Facade and Fire Remediation Specialist

    Est. 2026 1 office
    Compartmentation Compartment walls & cavity barriers Façade fire engineering +5 more
    Edinburgh View company

  5. Joint #5

    FSi Promat logo

    FSi Promat

    Fire safety, no compromise.

    Manufacturer 100+ people Est. 2000 1 office
    Compartment walls & cavity barriers Firestopping PFP product manufacture
    Measham View company

  6. Joint #5

    ISD Solutions logo

    ISD Solutions

    Cold store and firewall contractor holding LPS 1500 and LPS 1531.

    Contractor 100+ people 1 office
    Compartment walls & cavity barriers Firestopping Structural fire protection
    Gloucester, England View company

Browse all fire safety companies in the United Kingdom →

How the rankings work

Companies are ranked by how often their OpenFire directory profile was viewed during the calendar month, by people and by AI assistants. Search-engine crawlers, other automated traffic and link previews are not counted. Companies with equal views share a rank.

A company with offices in several countries, or working across several categories, is ranked in each of them on the same monthly total. A ranking is only published where enough companies are listed and viewed for it to be meaningful.

A ranking reflects interest in a company's listing. It is not an endorsement, and it is not a check of a company's competence, certification or accreditation.

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