BS EN 13501-1
Certificate type
BS EN 13501-1
Certificate type
Certificate available
Provided by British Standards Institution (BSI)
Date of last issue: 24/09/2021
TRC Replacement Glass with Slim Double-Glazed Units - Restoration
TRC Sash Window Renovation | Restoration | Refurbishment with High Performance Draught Proofing and replacement double or single glazing - Restoration
Heritage Sash Windows - Triple
Heritage Sash Windows - Double - Timber Sash Window
Heritage Sash Windows - Single - Timber Sash Window