Fire Door Gap Upgrade Seals

Fire Door Gap Upgrade Seals are designed to salvage existing non-compliant fire doors with excessive side gaps or bottom gaps, bringing them back in line with the requirements of AS1905.1 and AS1530.4. These upgrade products can often prevent the costly replacement of a complete fire door set while restoring compliance.

Why Gap Seals Matter

Large gaps around a fire door compromise its Fire Resistance Level (FRL) and allow smoke and flames to spread between compartments. Gap upgrade seals provide a tested solution to close down non-compliant clearances and help your doorset achieve certification.

Typical Applications

Apartment entry fire doors with excessive side gaps
Fire stair doors with uneven or worn thresholds
Older buildings where fire door replacement is costly or impractical
Commercial and strata properties requiring AFSS rectification

Get Expert Advice

Not sure which upgrade seal is appropriate for your project? Please contact our Specification Team or call us on 02 7201 5101 to speak directly with one of our fire door hardware specialists.

Fire Door Factory is Sydney’s trusted supplier and installer of tested, certified, and compliant fire door solutions — including gap upgrade seals that can extend the life of your existing doors while restoring compliance.