Occupied buildings

Planning fire stopping works in an occupied building

An occupied building needs a work plan that considers both the defect and the people using the space. Before arranging fire stopping remedials, agree the locations, access windows, enabling works, temporary arrangements and the evidence needed before ceilings or other finishes are closed.

Define the locations and the work

A report saying 'fire stopping required above ceiling' is a starting point, not a complete installation scope. Connect each finding to a room, riser or marked-up plan. Identify which areas have been inspected and which remain uncertain. Ask who will investigate concealed construction, specify the remedial detail and complete any associated opening-up or reinstatement. A short targeted survey may resolve questions that otherwise become variations during the programme.

Location references and photographs for each finding
Required performance and available drawings reviewed
Survey limitations and enabling works identified

Agree access around building operations

Discuss how each location can be reached without disrupting essential activities. A hotel may need coordination with room bookings; housing may require resident appointments; a clinic may require agreed access windows and local controls. Confirm restrictions with the building team rather than assuming that evening work is always possible. Include permits, security, keys, staff escorts and the arrangements for unsuccessful access in the programme.

Named contact and agreed access windows
Resident, guest or staff communication arranged
Working hours, permits and unsuccessful access process agreed

Resolve opening-up and safety controls first

Before disturbing fabric, check that asbestos information is sufficient for the proposed work; a more intrusive survey may be needed. Agree safe access, segregation, dust controls, protection of finishes and any necessary service isolation with competent people. Where work affects fire separation or escape arrangements, the building team and relevant advisers must agree temporary precautions and the sequence for leaving areas safe between visits. A booking slot does not resolve those technical questions.

Asbestos information checked before disturbance
Access equipment, isolation and housekeeping responsibilities agreed
Temporary precautions and end-of-shift arrangements defined

Coordinate the installation and inspection sequence

Confirm that relevant service work is ready for sealing and that later trades will not immediately disturb the completed installation. Use a suitable system for the actual construction and service arrangement. Agree inspection points before closure, including who will attend or review records. If a site condition differs from the proposed detail, record the query and resolve it before proceeding rather than concealing an unsupported change.

Other trades and the sealing sequence coordinated
Site condition checked against the supporting detail
Inspection and photographs completed before concealment

Release areas and hand over by location

Agree who removes protection, reinstates finishes and confirms that each area can return to its intended use. Issue completion status using the original location references, alongside photographs, product and detail information and applicable certification. Keep inaccessible, technically unresolved or additional work visible. A phased handover should show which areas are complete while the wider programme is still ongoing.

Reinstatement and area-release responsibilities confirmed
Completion evidence linked to the original finding
Access failures and remaining work listed separately

Examples from FireX projects

At Booth House in Whitechapel, FireX phased passive fire works around an occupied residential building. At SEON Vision Kingston Eye Clinic, FireX recorded 41 treated penetrations within an out-of-hours programme. The Lanesborough Hotel case study describes an ongoing programme in an operational hotel, including penetration sealing, fire doors and annual damper servicing. These examples show different delivery settings; their access arrangements and work quantities should not be treated as a specification for another property.

Use comparable projects to discuss delivery constraints
Confirm the requirements of your own building
Agree the evidence format before mobilisation

Next steps

Relevant services and guidance

Continue with the FireX service, sector or location information most relevant to your building.

Original sources and further reading

General guidance

This article is general information, not legal, fire-engineering or product-design advice. Follow the building fire strategy, current official guidance, tested system evidence and competent professional advice.

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