Lindon Bennett School — 22 External Aluminium Door Sets Replaced

NZR Windows & Doors Ltd was appointed by Lindon Bennett School in Feltham, West London to replace the external door sets across the school estate. The existing doors had reached the end of their serviceable life and were no longer operating reliably for daily use across classrooms, courtyards and staff areas.

The requirement was a complete like-for-like upgrade to modern commercial aluminium door sets, finished in RAL 7016, delivered as one coordinated programme rather than piecemeal replacements — and completed within the school holiday period so every opening was operational for the start of term.

• Full survey and measure of all external door openings
• Manufacture of 22 aluminium door sets to RAL 7016
• Phased removal of existing external door sets
• Controlled removal of heavy glazed panels
• Release and cutting back of concealed wall fixing lugs
• Preparation and squaring of each structural opening
• Installation of 20 single and 2 double aluminium door sets
• Glazing, gasketing and perimeter sealing
• Internal and external making good
• Ironmongery fitting, adjustment and alignment
• Operational testing of every completed set
• Photographic and video record of each opening

Two conditions dominated the programme. First, several of the existing door assemblies were extremely heavy and fully glazed, so each panel had to be released and removed under controlled conditions before the frame could be taken out. Second, once finishes were stripped back, concealed metal fixing lugs were discovered built into the surrounding structure on a number of openings.

Those lugs could not be seen at survey stage. Each one had to be located, cut back and made safe before the opening could be squared and prepared — additional work on individual openings that could easily have pushed the wider programme past the return-to-school deadline.