The Kitemark? is a mark of trust in the UK, but also a symbol used worldwide to signify quality.
Used in the UK there are various types of Kitemark?, for example the old BSI 5713 which relates to the performance levels of a double glazing unit as a whole.
A more recent Kitemark? standard is BSI 6206. This specifies how glass used for building purposes must perform under impact, specifically relating to glass safety and aimed at reducing the risk of injury caused in accidents where glass is involved.
Not all glazing companies carry the Kitemark? although the majority do. Suppliers who display the mark prominently are drawing attention to their commitment to quality and safety since they must be licensed in order to use it.