Fire Door Assessments That Protect Your Building

A fire door that looks sound at a glance can still fail when it is needed most. A damaged seal, excessive gap, unsuitable hinge or poorly fitted closer may allow fire and smoke to spread through a building far sooner than intended. Professional fire door assessments provide the detailed evidence responsible persons need to identify these weaknesses, prioritise repairs and protect the people who use their premises.

For landlords, facilities managers, business owners and managing agents, this is not simply a maintenance exercise. Fire doors are a vital part of a building's passive fire protection. When correctly specified, installed and maintained, they help contain fire and smoke, protect escape routes and give occupants valuable time to leave safely.

What fire door assessments examine

A proper assessment considers the complete fire door set, not just the door leaf. The frame, ironmongery, seals, glazing, signage and surrounding structure must work together to achieve the intended fire-resisting performance. A new-looking door is not necessarily compliant if it has been altered, fitted incorrectly or installed within an unsuitable frame.

The assessor will establish where each door sits within the building's fire strategy. A fire door protecting a stairwell, corridor, plant room or flat entrance may have different requirements depending on its location, use and the original design of the premises. This context matters. The right remedial action for one door may not be appropriate for another.

During an inspection, a competent assessor will typically consider:

• the door leaf, frame and architraves for damage, warping, splits or unauthorised alterations;

• gaps around the leaf and threshold, including whether they are suitable for the seals provided;

• intumescent strips and smoke seals, checking for continuity, damage, paint build-up or missing sections;

• hinges, closers, latches, locks and other hardware, including whether the door closes fully into its frame;

• glazing, vision panels, apertures and air grilles, where present; and

• certification markings, signage and the condition of the compartment wall around the door set.

Small defects can have serious consequences. For example, a wedged-open self-closing door can compromise a protected escape route. A missing intumescent strip may leave a path for hot gases to pass around the leaf. Equally, a closer that slams can encourage occupants to disable it, creating a practical safety problem even where the door itself appears serviceable.

Why fire door assessments support compliance

Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must take general fire precautions and ensure that fire safety measures are maintained. The precise duties depend on the building and its use, but the expectation is clear: passive fire protection must not be allowed to deteriorate unnoticed.

A fire risk assessment identifies the fire hazards, people at risk and control measures required for a premises. Fire door assessments provide a more focused examination of one of those control measures. They can supply the condition information needed to support the fire risk assessment, demonstrate that issues have been identified and help the responsible person make informed decisions about repair or replacement.

For certain multi-occupied residential buildings in England, the Fire Safety (England) Regulations 2022 also set specific checking requirements. In buildings over 11 metres, responsible persons must carry out quarterly checks of fire doors in common parts and annual checks of flat entrance doors. A detailed assessment can be particularly valuable where there is uncertainty about door condition, certification, alterations or the scope of remedial work needed.

There is no benefit in treating an inspection report as a document to file away. Its value lies in the action it prompts. If faults are found, they should be risk-rated, allocated to a responsible person and tracked through to completion. Where a defect affects an escape route or significantly reduces fire separation, urgent action may be necessary.

The difference between repair and replacement

Not every defect means that a complete door set must be replaced. In some cases, straightforward remedial work can restore performance. Replacing worn seals, adjusting a closer, renewing compatible hinges or repairing minor damage may be appropriate where the door's fire-resisting capability is otherwise intact.

However, replacement is often the safer and more defensible option where a door has no evidence of fire performance, has been extensively altered, is severely damaged or sits within a defective frame. A fire door leaf and frame are commonly tested as a set, so fitting a new leaf to an old or unsuitable frame should not be treated as an automatic solution.

The decision depends on evidence, risk and compatibility. A clear assessment report should explain the issue in plain terms, record the location and provide proportionate recommendations. This helps clients avoid both under-reacting to serious defects and spending money on unnecessary work.

What a useful assessment report should provide

An effective report should give more than a pass-or-fail judgement. It should create a manageable route towards safer premises. That means accurately identifying each door, recording its location and intended function, describing observed defects and including photographs where useful.

Recommendations should be prioritised according to risk. Immediate life-safety concerns need to be clearly separated from planned maintenance items. The report should also make clear where further investigation is required, such as checking concealed construction, confirming certification or examining adjacent compartmentation.

For larger sites, the findings should be sufficiently organised to support budgeting and programme planning. Facilities teams may need to coordinate access to flats, arrange specialist repairs or phase replacement work to minimise disruption. A good assessment recognises these realities without losing sight of the primary objective: maintaining effective fire separation.

How often should fire doors be assessed?

The appropriate frequency depends on the building type, occupancy, door use, risk profile and legal duties. Doors in busy communal corridors, schools, care settings, offices or commercial premises may experience frequent wear and should be monitored accordingly. A door that is repeatedly struck by trolleys, exposed to heavy footfall or used for deliveries is likely to need more attention than a rarely used plant room door.

Routine visual checks by trained site staff can help spot obvious changes between formal inspections. These checks do not replace a competent assessment, particularly where there are questions over fire rating, installation quality or the suitability of repair work. They do, however, help ensure that faults such as wedging, missing seals and failed closers are dealt with before they become accepted as normal.

Following refurbishment, alterations, a change of use or fire damage, fire doors should be reviewed as part of the wider fire safety process. Building work can introduce hidden weaknesses, including penetrations through frames, unsuitable ironmongery or changes to the wall construction around the door set.

Choosing a competent fire door assessor

Responsible persons should look for an assessor who understands both door construction and the wider fire safety context. A thorough inspection is not simply a checklist exercise. It requires the ability to recognise limitations, interpret available evidence and explain what action is realistically required.

Kent and Sussex FRA provides practical, compliance-focused fire door assessments for premises across Kent, East Sussex and West Sussex. Our certified fire safety consultants take a clear, safety-led approach, helping clients understand the condition of their doors, the significance of any defects and the next steps needed to address them. Assessment services are available from £130, with advice tailored to the premises rather than a one-size-fits-all report.

The most effective time to deal with a fire door defect is before a fire tests it. A clear assessment and a realistic action plan give responsible persons the confidence to protect occupants, preserve property and maintain the standards their building depends on.