IronmongeryDirect
24th September 2025
5 mins
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.
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.
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:
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.
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.
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.
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.
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.
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.
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.
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.
Yes, retrofit products allow existing fire doors to be repaired and upgraded, avoiding a costly and disruptive replacement.
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.