Fire Door Remedial Costs: Price Bands for Common Repairs

How much do fire door repairs cost?

Usually £150 to £900 + VAT a door, depending on the fault and how many doors are done on one visit. Seals and closers are the cheapest common fixes; glazing and frame work cost the most.

The right-hand column shows how often each fault came up across 448 doors with faults in our inspections, so you can see where the money usually goes. Full figures are on our fire door inspection statistics page.

What are the most common fire door faults?

Gaps and alignment top the list at 39% of faults, followed by missing, damaged or painted seals at 35%. Overall, 72% of fire doors needed at least one repair on our first visit (339 of 470 doors, September 2025 to October 2026).

Gaps are measurable, which is why they show up so often. 42% of the doors we measured had a leaf-to-frame gap over 4mm (156 of 371), and 25% had a gap under the door over 8mm (86 of 343). The government's fire door guidance gives 4mm as the industry standard around the edges. See fire door gap tolerances.

Seals are the other big one. They get painted over during redecoration, pulled out, or were never fitted. Our guide to intumescent strips and smoke seals explains what each does.

Should a failed fire door be repaired or replaced?

Repair it if the leaf and frame are sound, almost whatever the number of small defects. Across three of our repair programmes, 95% of failed doors were repaired rather than replaced (140 of 147).

Replacement is for doors that cannot be saved: impact damage, delamination, warping beyond adjustment, holes, or doors that were never fire-resisting. In one primary school we found 8 of 47 doors were not fire-resisting construction. In a block of flats, all 4 riser cupboard doors had been cut for ventilation.

Missing evidence can also push a door towards replacement when it protects a critical route. In another firm's survey of a school, 54 of 109 doors had no certification label or record. A good report explains why each door is graded the way it is. All of these findings are on our statistics page.

Why do fire door remedial quotes vary so much?

Mostly because of how many doors are done on one visit and how many faults each door has. A failed door needs 1.5 repair actions on average in our data, so batching the work cuts the cost per fix.

• Doors per visit: twenty doors on one visit cost less per door than twenty call-outs
• Faults per door: seals, closer and gaps together cost more than seals alone
• Access: schools are often done in the holidays, care homes around residents
• Parts: fire-rated glass and matched seals can have lead times
• Records: photos and component logs for each door take time, and are worth it

Who can carry out fire door remedial work?

A competent person. The government's fire door guidance for blocks of flats (revised 8 August 2025) says repair or replacement must be done by a competent contractor as soon as reasonably practicable.

Trained maintenance staff can handle narrow jobs, such as adjusting a closer or replacing a smoke seal like for like. Anything that changes the door, its frame or its glazing should go to a fire door specialist.

Parts should match the door's test evidence: like-for-like seals, closers to BS EN 1154, and hinges suitable for fire doors. BS 8214 is the code of practice for fitting and maintaining timber fire doors. See fire door remedials and fire door repairs.

What records should come with fire door repairs?

Before and after photos of each door, a list of what was fitted, and a check that gaps and closing are right afterwards. Without records, your fire risk assessor cannot show the defect was fixed.

Our demo inspection report shows the level of door-by-door detail to expect. If you have just had a bad report, our failed fire door inspection guide sets out what to do first.

We inspect and repair fire doors across Bedfordshire, Hertfordshire, London, the Thames Valley and the East Midlands.

Sources

• Fire Safety (England) Regulations 2022: fire door guidance (GOV.UK, revised 8 August 2025)
• BS 8214 Timber-based fire door assemblies: code of practice (BSI)
• BS EN 1154: Controlled door closing devices (BSI)
• Regulatory Reform (Fire Safety) Order 2005
• DC Fire & Security: fire door inspection statistics

Updated October 2026 by Sebastian Grabowski, DC Fire & Security. We inspect and repair fire doors across Bedfordshire, Hertfordshire, London, the Thames Valley and the East Midlands. Our own figures: fire door inspection statistics 2026.