Routine maintenance isn’t just about keeping your fire doors looking good—it’s a strict legal requirement. Neglecting fire door maintenance can result in failed inspections, heavy fines, or catastrophic failure during an emergency.
If you manage a commercial building, office, or residential block, you need a proactive approach. Use this ultimate maintenance checklist to ensure your doors remain fully compliant.
1. Visual Inspection of the Door Leaf and Frame
The ‘leaf’ (the door itself) and the frame are the primary barriers against fire.
- Check for damage: Are there any cracks, deep scratches, or areas where the wood has splintered?
- Check for warping: Has the door bowed or warped? If it has, it will not seal properly in a fire.
- Check the frame: Is the frame firmly attached to the wall with no loose architraves or structural shifting?
2. Intumescent Seals and Smoke Seals
These seals are the unsung heroes of fire safety. When exposed to extreme heat, intumescent seals expand to fill the gaps around the door, while cold smoke brushes stop lethal smoke.
- Are they intact? Look for any missing chunks, peeling, or damage to the seals running along the door edges or frame.
- Are they painted over? If someone has painted over the seals, they are ruined and must be replaced. Paint prevents them from expanding properly.
3. Hinges and Hardware
Fire doors are incredibly heavy, placing constant strain on the hardware.
- The ‘Three Hinge’ Rule: Every fire door must have a minimum of three firmly fixed hinges.
- Check the screws: Are all the screws in place? Are any loose?
- Check for metal dust: If you see dark metal dust underneath the hinges, it means the metal is grinding and the hinge is failing.
4. The Self-Closing Device
A fire door is completely useless if it’s left open.
- The Latch Test: Open the door halfway, let it go, and watch it close. It should shut firmly and engage the latch without you having to push it.
- Closing Speed: It shouldn’t slam violently (which can damage the frame) or close too slowly (which might allow smoke to pass). It should take roughly 5 to 8 seconds to close.
5. The Gaps
Fire doors operate on extremely precise tolerances.
- Top and Sides: The gap between the door and the frame should be consistently between 2mm and 4mm.
- The Bottom Gap: The gap under the door depends on the specification, but it is typically around 8mm for standard doors or 3mm if cold smoke seals are required at the threshold.
Need Professional Maintenance?
While this checklist is great for interim checks, it does not replace a formal, documented inspection and service by a professional.
At VYR Doors, we provide comprehensive fire door maintenance contracts across Cardiff, Swansea, and the wider South Wales area. We fix sticking doors, replace failing seals, and adjust closers to ensure total compliance.
Contact our team today to schedule your maintenance visit.