The ‘Yorkshire Light’ Sash Window

A diagram of a Yorkshire sash window,
Yorkshire Light Diagram

The ‘Yorkshire Light’ is most probably the oldest design of sliding  sash window.  It is a simple window: one section slides horizontally and there is no mechanism to assist movement.

The horizontal-sliding sash window can be subject to water ingress and draught problems.  So, we manufacture replacement windows with a number of modifications in order to make our windows more resistant to water ingress and less draughty.  We also recommend using Accoya® when we manufacture new windows because of its proven longevity and stability.