Guide · updated 9 October 2026
The most common fire door defects
Short answer: Most fire door failures come from a short list of defects: excessive gaps, missing or painted seals, closers that do not latch, worn or missing hinges, damaged leaves, non-rated glazing or hardware, unsuitable alterations and doors wedged open. Almost all are repairable.
- Gaps top the list
- Seals and closers close behind
- Most defects are repairable
- Wedging is a management issue
What are the most common fire door defects?
- Excessive or uneven gaps. Fixed by re-hanging, re-packing hinges, lipping or frame adjustment.
- Missing or damaged seals. Fixed by fitting the correct type and size of intumescent and smoke seal.
- Painted seals. Brush and fin seals that have been painted are replaced.
- Closer does not latch. Adjusted, or replaced with a correctly sized closer.
- Worn, dropped or missing hinges or screws. Hinges replaced with fire-suitable hinges and all screws fitted.
- Damaged leaf or edges. Repaired where the evidence allows; otherwise the door is replaced.
- Non-rated glazing or loose beads. Re-glazed with a matched fire-rated system.
- Unsuitable hardware. Extra locks, chains, non-rated letter plates or cat flaps removed or replaced.
- Missing or wrong signs. Correct mandatory signs fitted.
- Doors wedged or propped open. Hold-open devices fitted where doors need to stay open, plus resident and staff reminders.
Why do these defects keep coming back?
Because the causes are everyday use: heavy traffic, decorating, deliveries, residents adding security, and contractors drilling for new services. Regular checks catch defects early, when they are cheap to fix.
Which defects are the most urgent?
Anything that stops the door closing and latching, holes or missing glass, and fire doors that have been replaced with non-rated doors. These should be made safe immediately.
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Related questions
Can you price remedial work from someone else's inspection report?
Yes. Send the report and we will price each line. If the report lacks the detail needed, such as gap readings or photos, we will say which doors need a quick revisit before we can price them.
Will the door still be a certified fire door after repair?
The aim of remedial work is to restore the door's original performance using compatible components and methods. Where a repair would go outside what the door's evidence supports, we will recommend replacement instead.
Can a damaged fire door be repaired or does it need replacing?
Many faults can be repaired: closers, hinges, seals, small edge damage and beads. Holes through the leaf, major splits, delamination or damage to the frame often mean the door should be replaced. We will tell you which applies and why.
Can you repair a fire door from photos?
We can usually diagnose and price common faults from clear photos of the whole door, the edges and the hardware. Some faults, such as a warped leaf, need a site visit to measure.
Sources checked 9 October 2026: GOV.UK Fire Safety (England) Regulations 2022 fact sheets; BSI and FPA announcements on BS 8214:2026; FDIS published inspection data. This guide is general information, not legal advice.
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