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Fire Door Replacement vs Repair: Making the Right Choice

How to decide whether a fire door needs replacing or can be repaired.

Practical GuideApril 2026Fire Safety
Overview

Repair or replace?

Fire door inspections frequently identify doors not meeting current standards. The question is whether each can be brought up to standard through repair or needs replacement.

When repair is appropriate

A fire door can often be repaired where the leaf is structurally sound but has defective intumescent strips, worn smoke seals, defective self-closers, excessive gaps or minor surface damage.

When replacement is necessary

Replacement is needed where the leaf is damaged beyond repair, warped, delaminated, not of the correct specification, or previously altered in ways that compromise its fire rating.

Certification and evidence

Repaired doors should be documented. Replacement doors must have a manufacturer's certificate of conformity. Third-party certification from BWF-CERTIFIRE, BM TRADA or IFC provides additional assurance.

Cost considerations

Repair typically costs 50 to 150 pounds per door. Replacement costs 400 to 1,000 pounds or more. On large blocks, repairing where possible saves tens of thousands of pounds.

FAQ

Frequently asked questions

How often should fire doors be inspected?

At least every six months in residential buildings, quarterly in higher-risk premises. Annual detailed inspection by a competent person is recommended.

Can a fire door be repaired after being cut down?

Generally no. Cutting compromises the fire rating and replacement is needed.

Do flat entrance fire doors need self-closers?

Yes. All fire doors in common parts and flat entrance doors must have functioning self-closing devices.

What certification should a replacement door have?

A certificate of conformity from the manufacturer and ideally third-party certification from BWF-CERTIFIRE, BM TRADA or IFC.

Next Steps

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