What Are the Most Common Fire Door Defects Found During an Inspection?
Fire doors are designed to help slow the spread of fire and smoke through a building, but they can only perform effectively when the complete doorset is in suitable condition.
Everyday use, accidental damage, alterations and general wear can all cause problems to develop over time. This is why a professional fire door inspection looks at far more than the door leaf itself.
Inspectors consider the frame, seals, gaps, hinges, door closer, glazing, ironmongery and other components to identify defects that could affect how the door operates.
So, what are some of the most common fire door defects found during an inspection?
1. Incorrect Gaps Around the Fire Door
One of the most frequently identified problems is an incorrect or inconsistent gap between the door leaf and its frame.
A fire doorset has been designed and tested as a complete system, so the gaps around the door matter. Doors can move over time because of heavy use, adjustment, worn hinges or movement within the surrounding structure.
An inspection may therefore identify excessive gaps, uneven gaps or areas where the door is catching against the frame.
Depending on the cause and condition of the doorset, corrective work may be possible through professional fire door remedial works.
2. Missing or Damaged Intumescent and Smoke Seals
Intumescent seals are fitted to many fire doorsets and are designed to react when exposed to heat. Smoke seals may also be used to help restrict the passage of smoke.
During an inspection, these seals may be found to be:
Missing
Damaged
Loose
Painted over
Poorly fitted
Incomplete
Unsuitable for the doorset
Because seals form part of the complete fire door assembly, problems should not simply be ignored or replaced with unsuitable products.
Where appropriate, defective seals can often be addressed as part of a fire door remedial programme.
3. Fire Doors That Do Not Close Properly
A fire door that is designed to self-close needs to be able to close fully into its frame.
One of the most obvious defects is therefore a door that remains partially open, catches on flooring or requires somebody to manually pull it shut.
There can be several reasons for this, including:
Incorrectly adjusted door closers
Damaged hinges
Poor alignment
Obstructions
Changes to floor coverings
Damage to the door or frame
A door that has previously operated correctly can develop closing problems over time, particularly in busy environments such as schools, residential blocks, offices and commercial buildings.
Regular fire door maintenance can help identify and address developing issues before they become more significant.
4. Faulty or Incorrectly Adjusted Door Closers
Self-closing devices are another common area where defects may be identified.
A closer might have become damaged, disconnected or incorrectly adjusted. In other cases, it may not have enough force to close the door properly from different opening positions.
The important point is that the door and closer need to operate together correctly.
Government guidance for relevant multi-occupied residential buildings specifically highlights the importance of checking that self-closing devices remain operational, demonstrating why this component deserves close attention during inspection and maintenance.
Where a closer is defective, suitable adjustment or replacement may form part of the necessary remedial work.
5. Loose, Damaged or Unsuitable Hinges
Fire door hinges experience considerable pressure, particularly on heavier doors and doors that are used hundreds of times each day.
An inspector may identify:
Loose screws
Excessive movement
Worn hinges
Missing fixings
Damage
Unsuitable hinge arrangements
Hinge issues can also contribute to other defects, such as poor alignment or incorrect gaps around the door.
Minor problems should therefore be addressed before they develop further.
6. Damage to the Door Leaf
The door leaf itself should also be inspected carefully.
Damage may include cracks, holes, splitting, impact damage or unauthorised alterations.
Sometimes damage occurs gradually through heavy use. In other cases, doors may have been modified after installation to accommodate locks, access-control equipment, glazing or other hardware.
Whether a damaged fire door can be repaired depends on the construction of the doorset and the nature and extent of the defect.
Where appropriate, repairs may be possible. More substantial damage may mean that fire door installation and replacement is the safer and more practical solution.
7. Problems With the Door Frame
The frame is just as important as the door leaf.
An inspection may identify damage, movement, poor fixing, inappropriate alterations or gaps between elements of the doorset.
Because the door, frame and surrounding components are intended to work together, concentrating only on the visible door leaf can miss important defects.
Any issues identified with the frame should therefore be considered as part of the overall assessment of the fire door.
8. Damaged or Incorrect Ironmongery
Handles, locks, latches, hinges and other ironmongery can all affect how a fire door operates.
Components may become loose, damaged or replaced during the life of the door.
A common problem is that changes are made for practical reasons without considering whether the replacement hardware is appropriate for the particular fire doorset.
A professional inspection helps identify whether components are damaged or whether further investigation may be required.
9. Damaged or Altered Glazing
Where a fire door contains glazing, both the glass and the surrounding system should be considered.
Cracked or damaged glazing, inappropriate replacement glass or changes to glazing arrangements can all require attention.
Fire-rated glazing should not be treated in the same way as ordinary decorative glazing because it forms part of the tested door assembly.
If defects are identified, specialist advice may be required to establish the correct remedial action.
10. Missing or Incorrect Signage
Fire door signage is another straightforward issue commonly picked up during inspections.
Signs can become damaged, removed or painted over during refurbishment and decorating work.
Although signage may appear like a minor detail compared with a door closer or damaged leaf, correct identification helps building users understand how particular doors should be treated.
11. Unauthorised Alterations to Fire Doors
Fire doors sometimes change significantly from how they were originally installed.
New locks may be added, holes drilled, access-control systems fitted, components removed or other alterations carried out.
These changes may affect the doorset or make it more difficult to confirm its expected performance.
Whenever alterations are being considered, it is sensible to involve somebody with appropriate fire door knowledge rather than treating the door like a standard internal door.
What Happens When Fire Door Defects Are Found?
Finding a defect does not automatically mean that the whole door needs replacing.
The appropriate response depends on what has been identified, the construction and certification of the doorset, and whether an appropriate repair is possible.
Some issues may be addressed through adjustments or replacement components. Others may require more substantial fire door remedial works.
Where the damage is significant or suitable remediation is not possible, complete door replacement may be required.
This is why the inspection report is important: it should give the building owner or responsible person a clear understanding of what has been found and what action needs to be considered.
Why Regular Fire Door Inspections Matter
Fire door defects are not always obvious during everyday use.
A door might still open and close while having damaged seals, unsuitable gaps or other defects that need attention.
Regular inspection provides an opportunity to identify deterioration and take action before problems become more serious.
For certain multi-occupied residential buildings in England with storeys above 11 metres, the Fire Safety (England) Regulations 2022 require quarterly checks of communal fire doors and best endeavours to check flat entrance doors at least annually.
Other buildings will have different requirements and inspection frequencies should be informed by the building, its use and its fire risk assessment.
Need Your Fire Doors Inspected or Repaired?
If you manage a commercial property, block of flats, school, healthcare setting or other building in Kent or London, T7 Fire Protection can help assess the condition of your fire doors and identify defects that need attention.
Our team provides professional fire door inspections, ongoing fire door maintenance and specialist fire door remedial works across Kent and London.
If an inspection has already identified defects, contact T7 Fire Protection to discuss the next steps and request a quote.
