Flat Entrance Fire Doors: Rules, Responsibility and Replacement

Are flat entrance doors covered by fire safety law?

The front door of a flat does two jobs at once: it is the household's private entrance and, in fire safety terms, a compartment boundary holding back fire and smoke from the corridor or stairway every other household relies on to escape. For years there was argument over whether the Regulatory Reform (Fire Safety) Order 2005 — which applies to common parts but not to private dwellings — actually reached these doors. Section 1 of the Fire Safety Act 2021 settled the point.

Section 1 inserts a new paragraph (1A) into Article 6 of the Fire Safety Order: where a building contains two or more sets of domestic premises, the Order applies to the building's structure, external walls and common parts — and to 'all doors between the domestic premises and common parts'. The GOV.UK factsheet confirms that sections 1 and 3 commenced in England on 16 May 2022 and that responsible persons must 'ensure that these elements are included in their fire risk assessments, if they have not been covered already'. In Wales, section 1 was commenced earlier, on 1 October 2021, by the Fire Safety Act 2021 (Commencement) (Wales) Regulations 2021.

The inside of the flat remains outside the Order — domestic premises themselves are not regulated by it — but the entrance door is now unambiguously the responsible person's business. Every fire risk assessment for a multi-occupied residential building should therefore consider the flat entrance doors: their rating, their self-closing devices and their condition.

Who is responsible for a flat entrance fire door — and who pays?

Two different questions hide inside this one. Regulatory responsibility — who must assess and check the door — sits with the responsible person under the Fire Safety Order. Ownership and cost — whose door it is, and who pays to repair or replace it — is a matter for the lease. The two regularly point at different people, and both answers matter when a door needs replacing.

The responsible person's duties apply whoever owns the door

In a block of flats the responsible person is normally whoever controls the common parts: the freeholder, a residents' management company, a right-to-manage company or a housing association. The GOV.UK fire door guidance is explicit that the responsible person for the communal parts is responsible for undertaking the checks mandated by the Fire Safety (England) Regulations 2022 — and the Fire Safety Act 2021 means flat entrance doors must feature in the fire risk assessment even where every one of them belongs to a leaseholder. Appointing a managing agent does not transfer the legal duty.

Ownership and cost follow the lease

The Leasehold Advisory Service (LEASE), the government-funded advice body for residential leaseholders, puts it plainly: the lease should make clear who owns the front door, and that will be the leaseholder if the door forms part of the demised premises. On costs, LEASE's guidance is that a leaseholder who owns the fire door pays for any necessary replacement or upgrade, while where the freeholder is responsible the cost is usually passed to leaseholders through the service charge. Leases vary widely, and some are silent or ambiguous about entrance doors.

How often must flat entrance fire doors be checked?

Regulation 10 of the Fire Safety (England) Regulations 2022, in force since 23 January 2023, requires the responsible person for a residential building in England containing two or more sets of domestic premises and over 11 metres in height to use best endeavours to check every flat entrance fire door at least every 12 months. Fire doors in the common parts of the same buildings must be checked more often — at least every three months — because they take heavier daily use.

The check itself is deliberately modest. The GOV.UK guidance describes it as 'simple and basic' — 'you should not need to engage a specialist to carry these out'. For a flat entrance door, the checker confirms that the resident has not replaced a fire-resisting door with a non-fire-resisting one, the letterbox closes firmly, there is no damage to the door, frame or surrounding wall, the seals are intact, the gaps between door and frame are not excessive — the guidance cites an industry standard that the gap 'should never be more than 4mm', except at the bottom of the door, where it should be as small as practicable — and the self-closer closes the door fully into its frame. Our Regulation 10 guide covers the checks, records and enforcement in detail.

Below 11 metres there is no fixed statutory frequency, but the doors do not drop out of the law: they remain within the fire risk assessment, Article 17 of the Fire Safety Order still requires fire safety measures to be maintained in an efficient state, in efficient working order and in good repair, and the Regulation 10 resident information duty applies whatever the building's height.

What standard should a new or replacement flat entrance doorset meet?

The Building Regulations set functional requirements rather than naming products, and Approved Document B, volume 1 is the statutory guidance on meeting them for dwellings. Its Table C1 sets the benchmark for a doorset in a compartment wall 'if it separates a flat from a space in common use': FD30S when tested to BS 476-22, or E30Sa when classified to BS EN 13501-2 after testing to BS EN 1634-1. The 'S' — 'Sa' in the European classification — matters: it denotes restricted smoke leakage at ambient temperatures, which in practice means effective smoke seals alongside the intumescent fire seals.

Two points of precision. First, FD30 corresponds broadly to E30 — integrity only — under the European system, not to EI30, which adds an insulation criterion most fire doors are not designed to meet; Approved Document B itself notes that 'fire doorsets often do not provide any significant insulation'. Our guides to FD30 vs FD60 and BS 476 versus EN 1634 testing unpack the classifications. Second, the BS 476 route is on the way out: Approved Document B removes BS 476 fire-resistance classifications with effect from 2 September 2029, so a doorset specified today with European classification evidence (E30Sa) is the future-proof choice.

The self-closing device is not optional

Paragraph C5 of Approved Document B is unambiguous: all fire doorsets, 'including to flat entrances', should be fitted with a self-closing device — the exceptions are fire doorsets to cupboards, to service ducts normally locked shut, and doors within the flat itself. Regulation 10 then keeps the closer honest: both the annual flat entrance check and the quarterly communal check must confirm that self-closing devices are working. Our guide to fire door self-closers covers device types, standards and adjustment.

Security as well as fire: PAS 24 and Secured by Design

A flat entrance door is also the household's security barrier, and neither performance should be traded against the other. PAS 24 — currently PAS 24:2022+A1:2024 — is the UK's enhanced-security test standard for doorsets, and Secured by Design, the official police security initiative, requires dual certification where a doorset must resist both intruders and fire: a doorset 'that has undergone full scale recognised industry standard tests for fire resistance and for security based on the same design specification and has independent third-party certification for both Fire and Security on a single scope of certification'. The 'same design specification' wording is the crux — a fire doorset with security hardware bolted on afterwards, or a security door given fire upgrades outside its tested specification, may end up satisfying neither standard.

What does a compliant replacement flat entrance doorset include?

Modern practice — and the way Approved Document B frames its guidance, which is around fire doorsets — is to replace the complete assembly rather than hang a new leaf in an old frame. Appendix C, paragraph C4 explains why: test evidence must be 'applicable to the complete installed assembly', because 'small differences in detail may significantly affect the rating'. A compliant replacement flat entrance doorset brings together:

• A tested door leaf and frame supplied together, with fire — and, where specified, security — certification covering that exact configuration; our guide to fire door certification schemes explains what third-party certification adds.
• Intumescent strips and smoke seals delivering the 'S'/'Sa' smoke-control performance as well as fire resistance.
• A self-closing device that closes the door fully into the frame from any opening angle.
• Hinges and ironmongery covered by the test evidence — Approved Document B requires the essential components of hinges to be made from materials with a melting point of at least 800°C unless shown to be satisfactory when tested as part of the doorset.
• Letterplate, viewer, numerals, locks and any glazing included in the certified design, not added afterwards on site.
• Installation by a competent installer, achieving the gaps, fixings and perimeter packing the certification requires — see who can install fire doors.
• Paperwork: the certificate or test evidence, an installation record and the manufacturer's maintenance instructions, retained by whoever ordered the work and copied to the responsible person.

Residents should never replace their own front door unilaterally. The GOV.UK fire door guidance states that where a resident wants to alter or change their front door, 'this should be done with the knowledge and agreement of the Responsible Person' so that it does not undermine the fire risk assessment — and the annual check specifically looks for fire-resisting doors that have been swapped for non-fire-resisting ones. Where a door has been replaced, the responsible person should seek confirmation that the new door is fire-resisting and was installed by a competent person.

Our view: for a flat entrance, specify a dual-certified doorset — fire plus PAS 24 — with third-party certification and European classification evidence, and treat the installation record as part of the product. It removes every later argument about what the door is, what it can do and whether it was fitted correctly.

What are residents' duties — and what happens if access is refused?

Residents are not bystanders in this regime. Under Regulation 10(1) to (3), the responsible person must tell residents of any building with two or more sets of domestic premises — at any height — that fire doors should be kept shut when not in use, that self-closing devices should not be tampered with, and that faults or damage should be reported immediately. New residents must receive this information as soon as reasonably practicable after moving in, and all residents at least every 12 months.

For the annual flat entrance check, cooperation is the machinery that makes 'best endeavours' work. The GOV.UK guidance advises arranging checks with residents in advance and offering a range of times so residents can be present. Where access is refused, the refusal must be documented — Regulation 10(5) requires a record of the steps taken, including cases where access to a flat was not granted — and, in the guidance's words, 'ultimately, you might need to consider legal action if a resident persistently refuses to cooperate with these checks'.

In higher-risk buildings — those at least 18 metres in height or with at least seven storeys, containing at least two residential units, as defined by section 65 of the Building Safety Act 2022 — the law goes further. Section 95 places statutory duties on residents aged 16 or over and on owners of residential units: not to act in a way that creates a significant risk of a building safety risk materialising, not to damage, remove or interfere with relevant safety items, and to comply with reasonable requests for information from the accountable person. Section 96 backs those duties with contravention notices, enforceable through the county court.