Fire Door Inspections Explained: Guide for Building Owners and Responsible Persons

Fire doors form a critical part of a building’s passive fire protection system. However, installing the correct fire door is only the starting point. A fire door can suffer damage, wear, poor adjustment or unauthorised alteration during its working life. Without regular inspection and maintenance, these defects can prevent the door from performing as intended when a fire occurs.

A professional Fire Door Inspection helps building owners, Responsible Persons, facilities managers and property professionals understand the condition of their fire doors and identify defects that require attention. The inspection provides a structured assessment of each door and its associated components, creating a clear record that can support ongoing fire safety management.

This guide explains what a Fire Door Inspection involves, why inspections matter, what an inspector checks and how building owners can manage defects effectively.

What Is a Fire Door Inspection?

A Fire Door Inspection is a systematic assessment of a fire-resisting door assembly to determine its condition and identify defects that could affect its performance.

A fire door does not consist of the door leaf alone. Its performance depends on the complete assembly and the interaction between several components, including:

A defect in one component can affect the performance of the complete door assembly. For example, a door leaf may appear to be in good condition, but a defective closer may prevent it from shutting fully. Excessive gaps may allow smoke and hot gases to pass through. Damaged seals, inappropriate alterations or missing hinge screws may also affect performance.

BS 8214:2026 recognises that fire doors can deteriorate through normal use, repeated operation, damage and abuse. It identifies two common forms of deterioration: damage to the door leaf or assembly components, and wear to hardware or fixings that reduces the door's ability to self-close effectively. Regular inspection, maintenance and repair therefore play an important role in maintaining the required fire resistance.

Why Is Fire Door Inspection Important?

Fire doors help maintain compartmentation within a building. When closed, they help resist the passage of fire and, where designed for smoke control, restrict the movement of smoke.

Their purpose may include:

A fire door can only perform this role effectively if it remains in suitable condition and closes correctly.

Buildings place fire doors under constant operational stress. People open and close them repeatedly. Trolleys, equipment and furniture can strike them. Decorations can cover seals. Contractors may install new locks, access-control equipment or other hardware. Floor finishes can change. Hinges can wear. Closers can lose adjustment. Residents or occupiers may alter doors without understanding the fire safety implications.

A Fire Door Inspection identifies these problems before they remain hidden within the building's fire safety arrangements.

Regular inspection also helps the person responsible for the premises demonstrate that they have taken a structured approach to maintaining fire safety measures.

What Is the Difference Between a Fire Door Check and a Fire Door Inspection?

This distinction is particularly important.

A routine fire door check may involve a relatively simple visual assessment. A detailed Fire Door Inspection generally involves a more systematic assessment of the door assembly, its components, condition and potential defects.

Government guidance for Regulation 10 of the Fire Safety (England) Regulations 2022 makes clear that the routine checks required by those regulations are intended to be simple and basic. The guidance states that appropriately instructed caretakers, managing agents, housing officers and maintenance personnel may carry out these visual checks without using tools.

A professional Fire Door Inspection may go further by:

It is also important to distinguish both activities from a fire risk assessment.

Government guidance explains that a fire risk assessment considers the adequacy of fire resistance and the suitability of fire doors within the wider fire safety arrangements. The routine checks required under Regulation 10 have a narrower purpose. They help confirm that doors remain in the condition assumed by the fire risk assessment.

In practical terms, a building may require all three activities:

Who Is Responsible for Fire Door Inspections?

Responsibility depends on the type of building, its occupation and the applicable fire safety legislation.

Under the Regulatory Reform (Fire Safety) Order 2005, the Responsible Person has duties relating to fire precautions within relevant premises. In some buildings, more than one person or organisation may hold responsibilities.

Depending on the property, relevant parties may include:

For blocks of flats in England, the Fire Safety (England) Regulations 2022 introduced specific requirements relating to fire doors.

The regulations apply fire door information requirements to buildings containing two or more domestic premises with common parts through which residents would evacuate. Specific routine checking requirements apply to blocks where the top storey sits more than 11 metres above ground level.

For those buildings, the Responsible Person must use best endeavours to check flat entrance fire doors at least every 12 months and must check fire doors in communal areas at least every three months.

These statutory frequencies do not necessarily define the appropriate inspection frequency for every fire door in every building. The appropriate inspection regime should reflect the building, door location, usage, condition and fire risk.

What Does a Fire Door Inspector Check?

A detailed Fire Door Inspection should take a systematic approach. The exact scope will depend on the building, the available information and the inspection brief, but the following areas commonly form part of the assessment.

1. The Door Leaf

The inspector assesses the visible condition of the door leaf.

Typical defects may include:

The inspector will also consider whether visible changes could affect the door's intended performance.

A fire door leaf should not be treated as an ordinary internal door. Cutting, drilling or altering it can affect its construction and performance.

2. The Door Frame

The frame plays an essential role in the performance of the complete assembly.

The inspection may consider:

The relationship between the door leaf and frame is particularly important because the door must close correctly into the frame.

3. Gaps Around the Door

Excessive gaps can affect a fire door's ability to restrict the passage of fire and smoke.

The inspector will typically assess the gaps between the door leaf and frame and may measure them as part of the inspection.

Government guidance for routine checks in relevant blocks of flats states that the gap between the door and frame should not exceed 4 mm. It also states that the gap beneath the door should be as small as practicable while allowing the door to operate without snagging.

A detailed assessment should also consider the door's supporting evidence and intended specification where this information is available. The correct gap requirements can depend on the particular fire door design and evidence supporting its performance.

4. Hinges and Pivots

Hinges support the door and allow it to close correctly.

An inspector may check for:

BS 8214:2026 states that hinges and pivots should allow the closing device to close the door leaf reliably from any angle to which it has been opened.

A heavy fire door places considerable loads on its hinges. Even a relatively small amount of wear can affect alignment, gaps and closing performance.

5. The Self-Closing Device

The self-closing device is one of the most important elements checked during a Fire Door Inspection.

A fire door that remains open cannot perform its intended compartmentation function unless it forms part of an appropriately designed hold-open or free-swing arrangement that releases under the required conditions.

The inspector should check whether the door:

Government guidance recommends checking a door by opening it fully and allowing it to close, then repeating the test from approximately 15 degrees. In both cases, the door should close fully into the frame and overcome resistance from the latch or floor friction.

A defective closer requires attention because a partially open fire door may allow smoke and fire to bypass the compartmentation.

6. Intumescent Seals and Smoke Seals

Intumescent seals expand when exposed to heat and help seal the gap around a fire door.

Smoke seals help restrict the passage of smoke where the door requires smoke-control performance.

An inspection may identify:

Government guidance states that, where present, intumescent strips and smoke seals should remain undamaged and should make contact with the relevant door edge or frame.

BS 8214:2026 also states that smoke seals or combined intumescent and smoke seals should not be painted because paint can make them inflexible and impair their smoke-sealing and operational performance.

Importantly, the absence of seals does not automatically prove that an existing door is defective. Government guidance specifically warns against assuming that an older flat entrance door is unfit for purpose simply because it lacks modern intumescent strips, smoke seals or current certification. The fire risk assessment and the door's context remain important.

7. Locks, Latches and Other Ironmongery

Fire doors often contain a range of hardware.

The inspector may examine:

Hardware can affect the door's operation and fire performance.

BS 8214:2026 notes that cutting mortices into a door leaf can critically weaken it if the work does not follow the supporting evidence and manufacturer's recommendations. It also states that locks and latches should only be fitted where included within the supporting evidence.

This makes unauthorised modifications particularly important during a Fire Door Inspection.

8. Glazing

Where a fire door contains glazing, the glazing system forms part of the fire-resisting assembly.

The inspector may assess:

Government guidance requires routine checks to consider whether fire-resisting glass and the associated glazing system remain capable of resisting the spread of fire and smoke.

Replacing fire-resisting glass requires appropriate knowledge because the complete glazing system, not simply the glass itself, contributes to performance.

9. Letterplates and Other Apertures

Flat entrance doors frequently contain letterplates, viewers and other fittings.

An inspector may check whether:

Government guidance states that letterboxes should remain firmly closed and not jammed open. Where someone has added a letterbox to a door that did not previously have one, the fitting should be suitable for a fire-resisting door and installed appropriately.

How Often Should a Fire Door Inspection Take Place?

There is no single inspection interval that suits every building and every door.

The inspection frequency should reflect factors such as:

A busy communal corridor door may experience far more wear than a door in a low-traffic plant area. The inspection regime should recognise that difference.

For residential buildings in England where the top storey exceeds 11 metres, Regulation 10 requires the Responsible Person to use best endeavours to check flat entrance fire doors at least every 12 months and to check communal fire doors at least every three months.

These are specific statutory routine checking requirements. They should not be confused with a universal rule that every professional Fire Door Inspection in every building must take place at those intervals.

A risk-based inspection programme may require more frequent attention for doors exposed to heavy use or repeated damage.

What Happens After a Fire Door Inspection?

A useful Fire Door Inspection should result in clear, actionable information.

The inspection report may include:

The report should help the building owner or Responsible Person move from inspection to action.

A common mistake is to commission a survey, receive a long defect schedule and then allow the report to sit without a structured remediation programme.

Instead, you should:

Government guidance states that where checks identify the need to repair or replace a fire door, a competent contractor should undertake the work as soon as reasonably practicable.

Why Competence Matters

Fire door inspection requires knowledge of how door components work together.

The inspector needs to recognise visible defects, understand the significance of alterations and know when the available evidence does not support a definitive conclusion.

Competence becomes equally important during remediation.

A repair that appears visually neat may still affect fire performance if the contractor uses incompatible components or alters the door outside its supporting evidence.

BS 8214:2026 emphasises the importance of supporting evidence for fire doors and applies its recommendations to new buildings as well as repair, maintenance, improvement and modification work.

This evidence-led approach helps prevent inappropriate repairs based on assumptions.

The Importance of a Fire Door Register

For buildings with multiple fire doors, a fire door register provides an effective foundation for ongoing management.

A register can record:

A well-maintained register creates an audit trail and helps building managers identify recurring problems.

For example, if the same door repeatedly develops closing defects, the issue may relate to heavy traffic, misuse, unsuitable hardware or another underlying problem. A structured record makes these patterns easier to identify.

Common Fire Door Defects

Fire Door Inspection programmes frequently identify defects such as:

Some defects may be straightforward to correct. Others require further investigation, specialist repair or replacement.

The important point is that defects should not simply be recorded. The building's fire safety management process should track them through to appropriate action.

Fire Door Inspection in Existing Buildings

Existing buildings often present greater challenges than new construction.

Original certification may no longer exist. Door labels may be missing. Manufacturers may no longer trade. Previous owners may not have retained records. Doors may have undergone decades of repairs and alterations.

Government guidance provides an important principle for existing flat entrance doors. A door does not automatically become unsuitable simply because it does not meet the standards applied to a new fire door today.

The guidance states that a door that met the relevant standards when the building or door was constructed will generally continue to provide adequate protection if it remains undamaged and the gaps are not excessive. It also makes clear that missing modern certification, intumescent strips or smoke seals does not automatically mean the door is unfit for purpose.

This reinforces the need for proportionate, evidence-based assessment rather than automatic replacement.

How Anstey Horne Can Help

Managing fire doors across a large or complex property portfolio requires accurate information.

A structured Fire Door Inspection can help you:

Anstey Horne can provide professional Fire Door Inspection services to help building owners, Responsible Persons, managing agents and property professionals understand the condition of fire doors across their buildings.

A clear inspection programme gives you the information needed to make informed decisions and manage remedial work in a structured way.

Frequently Asked Questions About Fire Door Inspection

What is a Fire Door Inspection?

A Fire Door Inspection is a systematic assessment of a fire-resisting door assembly. The inspector examines the door leaf, frame, gaps, hinges, closer, seals, glazing, hardware and other relevant components to identify defects that could affect performance.

How often should fire doors be inspected?

The appropriate frequency depends on the building, level of use, risk of damage and applicable legal requirements. In residential buildings in England where the top storey exceeds 11 metres, communal fire doors require checks at least every three months, while the Responsible Person must use best endeavours to check flat entrance fire doors at least every 12 months.

Is a Fire Door Inspection the same as a fire risk assessment?

No. A fire risk assessment considers fire safety across the premises and the adequacy of fire precautions. A Fire Door Inspection focuses specifically on the condition and operation of individual fire doors and their components.

Can anyone carry out a fire door check?

The simple routine checks required under Regulation 10 of the Fire Safety (England) Regulations 2022 do not necessarily require a specialist. Government guidance states that appropriately instructed caretakers, managing agents, housing officers and maintenance personnel can carry out these basic visual checks. A more detailed Fire Door Inspection requires an appropriate level of knowledge and competence.

What is checked during a Fire Door Inspection?

A typical inspection considers the door leaf, frame, gaps, hinges, self-closing device, seals, glazing, locks, latches, letterplates and other hardware. The inspector also looks for damage, deterioration and alterations.

What gap is allowed around a fire door?

Government guidance for routine checks in relevant blocks of flats states that the gap between the door and frame should not exceed 4 mm. The bottom gap should be as small as practicable while allowing the door to operate correctly. However, the specific supporting evidence for a particular fire door should also be considered where available.

Does every fire door need a self-closing device?

Many fire doors, including flat entrance doors and fire doors within common parts covered by the relevant government guidance, require effective self-closing arrangements. The exact requirements depend on the door's location, purpose and fire strategy.

Does an old fire door need replacing because it has no certification label?

Not necessarily. Government guidance specifically states that the absence of certification does not automatically mean an existing flat entrance door is unfit for purpose. Its condition, history where known, fire risk assessment and overall suitability should inform the assessment.

Can a damaged fire door be repaired?

In many cases, competent specialists can repair fire doors, but the suitability of a repair depends on the nature of the defect and the evidence supporting the door's construction and performance. Repairs should not introduce incompatible materials or alterations that compromise the assembly.

What should happen when an inspection identifies a defect?

The building owner or Responsible Person should review the defect, assess its priority and arrange appropriate remedial action. Where repair or replacement is required, a competent contractor should carry out the work as soon as reasonably practicable.

Why should fire doors have unique identification numbers?

Unique references allow building managers to track the inspection history, defects, repairs and future actions for each door. This becomes particularly important in large buildings and property portfolios.

Conclusion

A Fire Door Inspection provides much more than a list of damaged doors. It gives building owners and Responsible Persons a structured understanding of the condition of an important part of the building's passive fire protection system.

Fire doors operate in real buildings, where repeated use, damage, alterations and maintenance work can gradually affect performance. Regular inspection helps identify these changes and provides the information needed to manage defects effectively.

The most effective approach combines appropriate routine checks, detailed inspection where required, competent remedial work and accurate record keeping.

For building owners, managing agents and Responsible Persons, a planned Fire Door Inspection programme can help turn fire door management from a reactive process into a controlled and documented part of building safety management.

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Stuart Barrow

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Director, Head of Fire Safety

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