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Fire Safety

Fire Doors Explained: Compliance, Installation & Maintenance

Everything you need to know about fire doors — what they are, why they matter, the key UK standards, and the mistakes to avoid.

Fire doors are a cornerstone of passive fire protection, yet they’re often overlooked until an inspection or, worse, an incident. Here’s what every building owner should understand.

What are fire doors?

A fire door is an engineered door set designed to resist the passage of fire and smoke for a specified period — commonly FD30 (30 minutes) or FD60 (60 minutes). They only perform as designed when the leaf, frame, seals, hinges, closer and hardware all work together as a certified assembly.

Why they’re important

  • Containment — they hold back fire and smoke, protecting escape routes
  • Compliance — they’re a legal requirement in most commercial and multi-occupancy buildings
  • Insurance — non-compliance can invalidate cover
  • Life safety — they buy critical time for safe evacuation

Key UK regulations and standards

Fire doors are governed by a framework of standards including BS 476-22 and BS EN 1634 for fire resistance testing, with third-party certification schemes such as BM TRADA and IFC providing assurance of quality and traceability.

Common installation and maintenance mistakes

Typical failures include incorrect gaps, damaged or painted-over seals, unapproved hardware, poorly adjusted closers, and modifications that compromise the door’s certification. Correct installation by a certified professional is essential.

How Indigo Systems can help

From supply and certified installation to routine inspection and remedial works, our accredited team keeps your fire doors compliant and effective throughout their lifetime.

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