Fire doors that meetcertification, not justappearance.

A fire door is tested as a complete assembly under standardised conditions, and its rating, commonly expressed in minutes such as FD30 or FD60, reflects how long that specific tested combination holds back fire and smoke. The leaf itself is usually built around a mineral or composite core designed to resist heat transfer, but the leaf alone does not create a fire door. Intumescent seals fitted into the door edge or frame expand rapidly under heat, sealing the gap between door and frame to stop smoke and flame passing through before the door has even burned through.

Hinges, closers, locks and any glazing within the door must all be part of the tested and certified specification, because introducing a non-certified component, even something as small as the wrong hinge screws, can change how the assembly behaves under fire conditions. This is why fire door installation and repair genuinely needs competent, trained engineers rather than general joinery skills, and why we work to BM TRADA / FIRAS standards on every fire door job.

Timber fire doors remain common in residential and lighter commercial applications, built with engineered cores designed to char predictably and slowly under fire conditions while maintaining structural integrity. Steel fire doors are used where higher security or more demanding fire ratings are required, particularly in plant rooms, service risers and industrial settings, often combining fire resistance with security specification in a single door.

Glazed fire doors incorporate fire-rated glazing units set within certified beading and frames, commonly used where visibility is needed across a corridor or reception area without compromising compartmentation. Composite and specialist fire doors exist for specific applications such as high-frequency communal doors in residential blocks, which need to withstand heavy daily use while retaining certification over years of service.

Fire door inspection has become a central part of fire safety management, particularly for residential blocks where flat entrance doors and communal escape route doors are now expected to be checked regularly and the results documented. A proper inspection covers the door leaf condition, frame fit and gaps, seal condition, glazing, hinges, self-closing device function, and any signage requirements, not just a visual glance from the corridor.

We can carry out one-off fire door surveys to establish a baseline of compliance across a building, or set up a planned maintenance contract that provides scheduled inspections and a documented record over time. This kind of ongoing evidence is increasingly what responsible persons need to demonstrate to fire risk assessors, enforcing authorities and insurers, rather than a single historic installation certificate.

Residential blocks rely on fire doors at flat entrances and along communal escape routes, and this area has seen the most significant increase in regulatory focus in recent years, with landlords and managing agents under growing pressure to evidence compliance. Commercial offices use fire doors to protect stairwells, plant rooms and compartment walls, often combined with access control that must not compromise the door's ability to self-close and latch.

Industrial and warehouse sites use fire-rated doors to separate storage areas, protect escape routes through large open floor plates, and sometimes to comply with insurance requirements around compartmentation of high-value or high-risk stock. Education and healthcare buildings often require fire doors with vision panels for supervision, alongside strict compliance given the higher occupancy and reduced mobility of some building users.

Commercial fire door projects often involve coordination with building control, fire engineers and main contractors, with certification documentation forming part of a wider handover pack for the completed building. The scale is often larger, covering many doors across a single project, and specification tends to be driven by a fire strategy document produced at design stage.

Residential fire door work, particularly in existing occupied blocks, is more often reactive or remediation-led, triggered by a fire risk assessment identifying non-compliant doors that need replacing or repairing. This work has to be planned carefully around occupied flats and communal areas, minimising disruption to residents while still meeting the urgency that fire safety findings usually carry, and we plan our access and scheduling accordingly.