Fire Door Installation and Maintenance UK¶

Guide to fire door installation, maintenance, and compliance in UK homes and flats - FD30, FD60, intumescent strips and legal requirements.

Fire Door Standards and UK Regulations¶

Fire doors are a critical component of passive fire protection in UK homes, particularly in flats and HMOs. Under Building Regulations Approved Document B, fire doors must be certified to BS 476-22 or BS EN 1634-1. Common domestic ratings are FD30 (30-minute fire resistance) and FD60 (60-minute). A certified FD30 fire door costs £80-£200, while fully finished and installed doors range from £250-£600 including frame, intumescent strips, smoke seals, and hinges. Brands like JELD-WEN, LPD, and Deanta dominate the UK market. Since 2023, all new-build flats in England require fire doors to all habitable rooms, not just the flat entrance. Intumescent strips expand at 100-200 degreesC to seal gaps and prevent smoke spread.

Installation, Inspection and Maintenance¶

Fire doors must be fitted in the correct frame with appropriate hinges (three per door), a self-closing device, and cold smoke seals. The gap between door and frame should be 2-4mm - any wider and smoke may pass. Hinges must be fire-rated and not painted over. In communal areas of blocks of flats, fire doors must be inspected quarterly by the responsible person. Annual third-party inspection is recommended. Common faults include doors propped open, damaged intumescent strips, oversized gaps, and non-compliant replacement doors. Fire door closers must be adjusted so the door fully latches from any open position. Never remove, adjust, or paint over fire door components.

Specifications and Comparison¶

Door Rating	Fire Resistance	Typical Price	Application
FD30	30 minutes	£80-£200	Flat entrance, bedroom doors
FD60	60 minutes	£150-£400	Communal corridors, stairwells
FD120	120 minutes	£300-£800	Plant rooms, commercial

FAQ¶

Can I paint a fire door?: Yes, but only using intumescent paint that does not compromise its fire rating. Never paint over hinges, seals, or the self-closing mechanism.
How often should fire doors be inspected in UK flats?: In blocks of flats, fire doors in common areas must be checked every three months. Flat entrance doors should be inspected annually.
Are fire doors legally required in rental properties?: In HMOs and flats, fire doors to habitable rooms are typically required. Since 2023, new-build flats in England need fire doors to all rooms. For more information see our Fire Safety for UK Flats and Apartments.

Last updated: 2026-05-31.

External Resources¶

For further information consult authority guidelines at the National Security Inspectorate.