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    London · Greater London

    Compartmentation Surveys in London

    Professional compartmentation surveys services in London, Greater London. SSAIB-certified engineers covering All London postcodes. Free site surveys and no-obligation quotes.

    Postcodes covered: All London postcodes

    Request a Free Site Survey 01582 227 123
    SSAIB Certified
    Fast Response Times
    15+ Years Experience
    500+ Commercial Clients

    Professional compartmentation surveys across London

    We serve commercial clients across Greater London, from offices and retail premises in Central London to schools and industrial units across North London boroughs. Our engineers are experienced working in high-density urban environments, multi-storey buildings, and sites that require careful planning around access and working hours.

    Whether you need a new compartmentation surveys installation, a system upgrade, or ongoing servicing and maintenance, our SSAIB-certified engineers are ready to help across London and the wider Greater London area.

    Who this service is for

    • Commercial offices in London
    • Retail chains and high street shops in London
    • Multi-site organisations in London
    • Schools and universities in London
    • Construction sites and developments in London

    Coverage area

    We cover London and all surrounding areas in Greater London.

    Postcodes covered
    All London postcodes
    Areas we regularly serve
    North London boroughsCentral London commercial districtsCity of LondonIslington and Camden
    Call for availability in your area

    What's included in our compartmentation surveys service

    Pre-Survey Document Review

    Review of fire strategy, drawings, Regulation 38 information and any previous reports before attending site.

    Type 2 or Type 4 Inspection

    Non-intrusive Type 2 or intrusive Type 4 inspection scoped to the building's risk profile and the trigger for the survey.

    Service Penetration Audit

    Every penetration through a fire-rated element logged, measured and assessed against tested third-party systems.

    Compartment Line Verification

    Each compartment wall and floor traced and verified against the fire strategy, including risers, stairwells and flat entrances.

    Cavity Barrier Inspection

    Concealed spaces inspected for cavity barriers and continuity of fire and smoke separation.

    Photographic, Location-Referenced Report

    Every finding photographed, plotted on floor plans and risk-rated. Drops straight into your golden thread evidence.

    Need compartmentation surveys in London? Speak to an engineer today.

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    Why choose DC Fire & Security for compartmentation surveys in London

    Aligned with the Building Safety Act 2022 golden thread
    Type 4 intrusive surveys to insurer / BSR expectations
    Photographic evidence and unique IDs for every finding
    Marked-up floor plans, not just lists of locations
    Risk-rated defect schedule ready to price
    Compatible with FIRAS / IFC remedial frameworks
    Single provider option — survey + remediation
    Reports formatted for the building safety case

    How it works

    01

    Scoping Call

    We confirm the trigger for the survey and whether Type 2 or Type 4 is appropriate.

    02

    Document Review

    We review the fire strategy and drawings before attending site.

    03

    On-Site Survey

    Surveyors carry out the inspection, photographing and recording every finding against the floor plan.

    04

    Reporting

    Executive summary, technical report, photographic register and remedial schedule delivered within 10 working days.

    05

    Optional Remedials

    We can mobilise the installation team to close out the schedule and re-inspect for sign-off.

    Compartmentation Surveys projects in London

    Compartmentation survey at a school in Luton

    Compartmentation survey of fire protection at a Luton school

    Compartmentation and fire risk inspection at Challney Girls School, Luton

    Compartmentation and fire risk inspection, Challney Girls School

    Recent work in London

    Type 4 Residential Survey

    Type 4 intrusive compartmentation survey across a 6-storey residential block in London for the managing agent's insurer evidence pack.

    48 flats
    2 weeks
    School Compartmentation Audit

    Compartmentation audit of a primary school in London including risers, ceiling voids and roof spaces, with marked-up plans and a priced remedial schedule.

    Whole site
    1 week

    Compartmentation Surveys equipment we use in London

    Industry-leading products from trusted manufacturers

    Type 4 Survey Methodology

    Intrusive inspection methodology aligned to PAS 79-2 and post-Grenfell guidance

    Photographic Recording Tools

    Tablet-based on-site capture with unique reference IDs and floor-plan plotting

    Floor Plan Mark-Up Platform

    Digital plan mark-up showing every defect location and severity

    Tested System Reference Library

    Comprehensive library of FIRAS, IFC and BM TRADA tested firestopping details

    Risk Rating Matrix

    Immediate / short / medium-term defect prioritisation aligned to insurer expectations

    Building Safety Case Templates

    Report formats designed to drop into the Building Safety Act golden thread evidence pack

    Frequently asked questions about compartmentation surveys in London

    What is the difference between Type 2 and Type 4 surveys in London?
    Type 2 is a non-intrusive visual inspection of accessible compartment lines. Type 4 is intrusive — opening ceiling tiles, lifting access panels, inspecting risers and voids, and sampling flat or room interiors. Type 4 has become the expected standard for higher-risk residential buildings.
    What does the Building Safety Act 2022 require in London?
    For higher-risk buildings, the Accountable Person must build and maintain a 'golden thread' of building safety information, including evidence that compartmentation and fire stopping perform as the fire strategy intends. By 2026 these requirements are fully enforceable by the Building Safety Regulator.
    How is a compartmentation survey priced in London?
    A non-intrusive Type 2 survey of a 2,000 m² office is typically in the £1,200–£2,500 range. Larger or complex buildings are priced on a per-day or per-square-metre basis after a brief scoping call.
    Do you cover the whole of London?
    Yes. Our engineers cover all of London and the surrounding Greater London area. We provide free site surveys and can typically attend within 24–48 hours of your enquiry.
    How quickly can you attend a site in London?
    We aim to respond to all enquiries within 24 hours. For compartmentation surveys projects in London, we can usually arrange a site survey within 2–3 working days.
    Do you offer ongoing maintenance in London?
    Yes. We offer scheduled servicing and maintenance contracts for all systems we install in London. This ensures your equipment stays compliant and fully operational year-round.

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    Compartmentation Surveys in nearby areas

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    Get a free compartmentation surveys quote in London

    Our local engineers cover London and all All London postcodes postcodes. Request a free site survey and no-obligation quote today.

    01582 227 123Call us directly
    info@dcsecurity.co.ukEmail us anytime

    Request a free compartmentation surveys quote

    Free no-obligation quote for London and surrounding areas

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    24-hour response
    SSAIB certified
    500+ commercial clients