Fire door compliance, explained properly

Fire door guides in plain English. The regulations, standards and guidance around fire doors frequently conflict, and knowing how to interpret them is most of the job. These fire door guides explain the questions we are asked most, with a visible “last reviewed” date on every one. However, they are general guidance, not legal advice. For the official documents, the government keeps its fire safety law and guidance in one place on gov.uk.

Fire door guides: compliance and the law

Who is the responsible person for fire safety?
Who carries the legal duty, what they must do, and the evidence file they have to hold. The hub every other guide links back to.

Fire safety legislation and standards, in plain English
How the Fire Safety Order, the 2021 Act, the 2022 Regulations, Approved Document B and BS 8214 fit together.

Fire Safety Order 2005, explained
The foundation of fire safety law: who it applies to, what it requires, and where fire doors fit.

The Fire Safety Act 2021, explained
How it brought flat entrance doors and external walls into the fire risk assessment.

Fire Safety (England) Regulations 2022, explained
Quarterly communal door checks, annual flat entrance door checks, and who must do them.

Approved Document B, explained
The design-stage guidance: why it is guidance not law, and what it says about fire doors.

BS 8214:2026: what changed
The 2026 revision of the fire door code of practice explained in full, and what it means going forward.

Fire doors: who pays, the leaseholder or the freeholder?
Who is responsible for fire doors in a block of flats, how the law and your lease decide, and how the cost is recovered.

Fire door certification guides

What actually makes a fire door a fire door?
The thirteen parts of a fire door assembly, illustrated on a real installed door.

What is third-party fire door certification?
Training-based approval vs independent certification, and what a certificate can and cannot tell you.

Certified, notional or nominal: what kind of fire door do you have?
The three certification categories, and why evidence cannot be created after the fact.

Should you repair or replace a fire door?
When repair restores compliance, when replacement is the honest answer, and a real second-opinion example.

Fire door modifications: what voids certification?
Cat flaps, trimming, letterplates, locks and paint: what takes a door outside its evidence.

What is the Common Assessment Standard (SMAS Worksafe Pro)?
The construction industry’s standardised pre-qualification, and what it lets buyers skip.

Inspection, cost and choosing a contractor

What are the correct gaps around a fire door?
Gap tolerances, why they are the number one inspection failure, and how to check.

Checking a fire door yourself: a 5-step visual check
A quick self-check anyone can do, and the honest limits of it.

How to choose a fire door company
What to look for, and the questions that reveal quality wherever you look.

Fire door cost: inspections, repairs and replacement
Realistic 2026 prices for inspections, repairs and certified replacement doorsets, and the five things that move a quote.

Finally, if your question is not covered by these fire door guides, ask us. We add new guides as the questions come in, and we re-review every page when the legislation moves.