Our team recently completed a programme of remedial fire door works within a residential block at the Port of Dover, helping ensure the communal fire doors met the required performance standards and operated correctly in the event of an emergency.
Following a detailed inspection, several doors were found to have excessive perimeter gaps outside of the recommended tolerances. We carried out precise adjustments to the door leaves, frames and ironmongery to achieve consistent gaps of approximately 2–4mm around the door sets.
Works completed included:
• Adjustment of fire doors to achieve compliant perimeter gaps
• Installation of face-mounted automatic drop-down seals
• Adjustment and fine-tuning of door closers
• Testing doors from multiple opening positions to ensure reliable self-closing action
• Inspection of hinges, seals and door alignment
• Final operational checks to confirm correct performance
The images show the detailed gap measurements taken before and during the remedial works, along with the installation of new drop-down seals and door closer adjustments. Achieving the correct gap size is essential to the performance of a fire door, helping to restrict the spread of smoke and fire while ensuring the door can close and latch correctly.
By carrying out these adjustments and upgrades, the doors now close consistently from all angles and provide improved fire compartmentation throughout the building.
CFP Carpentry & Fire Prevention continue to provide fire door inspections, remedial works, maintenance and compliance upgrades for residential, commercial and public sector properties across the South of England.

