Fire Door Maintenance: A Practical Guide

Inspecting fire doors tells you what's wrong; maintenance is what puts it right and keeps doors performing over time. Because fire doors are in constant use and constantly at risk of damage and misuse, maintenance isn't a one-off — it's an ongoing programme of repairs, adjustments, and replacements driven by inspection findings. This practical guide covers how to maintain fire doors.

Maintenance follows inspection

Fire door maintenance and inspection are two halves of one cycle: inspect to find defects, maintain to fix them, then re-inspect to verify. A maintenance programme without inspection is guesswork; inspection without maintenance just documents problems. The two only deliver safety together.

Routine maintenance tasks

Common fire door maintenance work includes:

• Adjusting self-closers so the door closes fully onto the latch from any position.
• Replacing seals — intumescent and smoke seals that are damaged, missing, or painted over.
• Tightening or replacing hinge screws and faulty hinges.
• Re-aligning doors that have dropped or bind, restoring correct gaps.
• Repairing or replacing damaged leaves and frames (within what's permissible without voiding certification).
• Replacing or refitting hardware with correct fire-rated components.
• Reinstating signage where it's missing or damaged.

Use competent people and correct components

Fire door maintenance must keep the door's certified performance intact. That means using a competent person and correct, compatible components — the right seals, fire-rated hardware, and approved repair methods. An inappropriate repair, or a non-rated replacement part, can void the door's fire performance even though it looks fine.

Know the line between repair and replace

Not every defective fire door can be repaired. Significant damage to the leaf, extensive alterations, or doors that aren't actually certified assemblies may need replacement rather than repair. A competent person should judge whether a repair will restore certified performance or whether the door needs replacing.

Address the causes, not just the symptoms

If doors keep being wedged open, the fix isn't just removing the wedge repeatedly — it's addressing why (e.g. fitting compliant hold-open devices that release on alarm). If seals keep getting painted over, brief the decorators. Maintenance is more effective when it tackles the recurring causes of damage and misuse, not only the individual defects.

Keep maintenance records

Every maintenance action should be recorded against the specific door — what was done, when, by whom — alongside the inspection that triggered it. This running history is part of the building's fire safety information and demonstrates that defects found in inspection were actually resolved. An inspection record showing defects with no evidence of remediation is a red flag.

Plan it as a programme

For a building or portfolio with many doors, fire door maintenance is best run as a planned programme: inspections feed a prioritised list of remedial work, work is scheduled and completed by competent operatives, and each fix is verified and recorded. Critical defects (e.g. doors that won't close on key escape routes) jump the queue.

Capturing it digitally

A digital inspection and maintenance tool links each maintenance task to the door and the inspection that raised it, tracks it to verified closure, and keeps the full history — turning a scattered set of repairs into a managed, auditable maintenance programme.

Key takeaways

Fire door maintenance puts right what inspection finds — adjusting closers, replacing seals, fixing hinges, re-aligning doors, and replacing components — using competent people and correct parts to preserve certified performance. Know when to replace rather than repair, tackle the causes of recurring damage, and record every action against the door. Run it as a planned programme tied to inspection, and verify each fix.