Fire Door Compliance: The Importance of Competence and Retrofit Solutions
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Fire Door Compliance: The Importance of Competence and Retrofit Solutions

24th September 2025

Fire Door Compliance: The Importance of Competence and Retrofit Solutions

Fire doors play a vital role in keeping people and properties safe, controlling the spread of smoke and flames in the event of a fire. Keeping fire doors compliant is essential for meeting important standards, but according to the Fire Door Inspection Scheme (FDIS), three-quarters of inspected fire doors fail compliance tests. The most common reasons are gaps, poor installation, and missing or damaged seals. This demonstrates the importance of competent installation and reliable retrofit solutions to maintain fire door safety.

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Why Competence is Critical

For fire doors to work safely and properly, they must be installed and maintained correctly. Common failures often come down to competence, so it’s important that fire doors are up to standard. The Building Safety Act reinforces SKEB (skills, knowledge, experience, behaviours) and acts as a reminder that not only product choice, but also competent installation and proper maintenance are key. Understanding standards such as BS 476 Part 22 and BS EN 1634-1, and prioritising safety and compliance over speed and convenience, will help ensure doors operate as designed.

For example, using the wrong size, type, or configuration of a seal, even if it looks similar, can risk invalidating certification and compromising safety. Paint build-up, damage, or wear can also reduce performance so it’s essential to complete regular inspections and make correct replacements. Combined smoke seals are particularly critical, as smoke inhalation can be just as life-threatening as flames. These seals are tested as part of a complete fire door set, restricting smoke spread in the early stages of a fire, making the correct specification vital. Third-party certification schemes, including Certifire and BM TRADA Q-Mark, provide assurance that all necessary standards are met.

The Cost of Non-Compliance

While replacing entire fire doors helps to ensure compliance, it isn’t always a practical or affordable option. Retrofit solutions bridge the gap. These smart and effective products maintain and restore compliance, reducing the risk to safety and avoiding regulatory penalties.

What Are Retrofit Solutions for Fire Doors

Retrofit products for fire doors are designed to provide alternatives to making a complete door replacement. Products including intumescent strips and fire door seals are a less costly option, providing an effective solution for protecting people and property in the event of a fire. Norseal’s retrofit range provides fast and reliable fixes for common fire door issues, such as:

  • NOR710 – A fast retrofit smoke and acoustic seal
  • The Norseal NOR710 is an ideal retrofit solution for fire-rated doors that need immediate smoke containment and improved acoustic performance. Thanks to its self-adhesive backing, it can be surface-applied cleanly and quickly without invasive cutting or disruption. Once installed, the seal delivers certified performance: smoke testing to BS 476-31.1, acoustic performance (up to around 48 dB) using dual air-pocket technology, and proven durability through one million cycle tests.

  • NOR820 – A face-fixed drop seal design for easy retrofitting without routing.
  • Framefit – A system designed to close excessive gaps between the door and frame.
  • All products are fully tested to BS 476 Part 22 / BS EN 1634-1 and are a practical and effective option to ensure fire doors are brought back to compliance.

    An image of a norseal seal

    Ensuring Retrofit Products Work

    Retrofit products only achieve compliance when they’re fitted and maintained correctly. Norseal supports installers with the Norseal Academy, offering training and resources to ensure everything is done as it should, and fire doors perform as intended.

    A Compliance Checklist

  • Inspect seals regularly for wear, damage, or paint build-up
  • Look for third-party certification such as Certifire or BM TRADA Q-Mark
  • Keep records of inspections and maintenance
  • Use the manufacturer’s specified seals and replace seals on a like-for-like basis only
  • An image of a norseal seal

    Discover Retrofit Solutions for Fire Doors

    Retrofit solutions play a vital role in fire door safety. With competent installation, proper maintenance, and the right retrofit solutions, compliance can be achieved without the cost of a full replacement. Explore Norseal’s high-performance range for maximum fire door safety.

    FAQs

    Why are seals important on fire doors?

    Seals play an important role in fire door compliance, from intumescent seals which expand in heat to smoke seals which block smoke in the early stages of a fire. Without properly working seals, a fire door may fail to perform as tested when needed.

    Can fire door seals be replaced with any similar seal?

    No, fire door seals must always be replaced like-for-like, with the exact type, size, and configuration specified by the manufacturer. Using the wrong seal can hugely compromise safety.

    What does competence mean in fire door installation?

    Competence is essential when referring to fire doors. It involves having the skills, knowledge, experience, and behaviours (SKEB) to ensure fire doors are installed and maintained correctly. A competent installation is just as important as the product itself.

    What should I do if seals are missing or damaged?

    Plain intumescent fire seals can sometimes be painted over, but combined fire-and-smoke seals or smoke-only seals must not be painted over. Any seals that are missing, damaged, or painted incorrectly must be replaced on a like-for-like basis to ensure they work as intended in the event of a fire.

    Do retrofit seals save money?

    Yes, retrofit products allow existing fire doors to be repaired and upgraded, avoiding a costly and disruptive replacement.

    How often should fire door seals be checked?

    Fire door seals should be checked regularly (at least once every 6 months) to ensure they work as they should. Look out for wear, damage, or paint build-up and if there are any issues, these should be addressed promptly so the fire door remains compliant.

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