Fire Door Regulations

Fire door safety across the UK is governed by a network of interlocking laws and statutory building guidelines.

Its worth noting that a “fire door” is legally viewed as a complete certified assembly, meaning the door leaf, frame, and hardware must all be certified to work together.

Heritage fire doors and doorsets come with either the correct components or clear information about how the door should be installed to function correctly and pass fire inspection.

The key laws and guidelines that cover fire doors in the UK are;

  • The Regulatory Reform (Fire Safety) Order 2005 (FSO): This forms the core legal foundation. It places the legal duty of maintaining fire doors squarely onto the designated "Responsible Person" (such as a commercial building manager or landlord).

  • The Fire Safety Act 2021: This law explicitly clarifies that the front entrance doors of individual flats in multi-occupied buildings fall under the scope of the FSO and must be included in the building's official Fire Risk Assessment.

  • The Fire Safety (England) Regulations 2022: This introduced mandatory, structured inspection schedules specifically for multi-occupied residential buildings

  • Approved Document B (Building Regulations): This provides the statutory guidance on exactly where fire doors must be installed during building construction or major renovations.

  • BS EN 1634-1 Under the technical standards update, the old BS 476-22 standard has been withdrawn. All commercial doors must move to the EN 1634-1 standard

Fire door requirements depend heavily on the layout and the height of the property;

  • Domestic Homes (3+ Storeys): Every internal door opening onto a stairwell that leads to a habitable room must be a fire door. Fire doors are also mandatory for loft conversions and doors connecting a home to an integral garage.

  • Flats & Apartment Blocks: Flat front entrance doors leading into communal corridors must be fire-rated. Internal fire doors are required in flats located 4.5 metres or more above ground level

  • Commercial Buildings & HMOs: Houses in Multiple Occupation (HMOs) and commercial premises require fire doors along all designated vertical and horizontal emergency escape routes.