You can double glaze your original sash windows
A question we often get asked is can I double glaze my original sash windows without changing the appearance the simple answer to that is yes. With our specialist glazing system we can double glaze your original sashes without changing the appearance of the windows, this is as example in the picture above, this window is in Llanrwst North Wales as you can see it is quite a complex glazing bar layout the window has been fitted with slim double glazing and now gives a thermal performance the same as a new sash window.