15/03/2024
Here are some photos of a traditional 6 pane top sash window going through the process of getting double glazed.
Firstly all the face putty and existing glass is removed.
Then the rebates are routered deeper to allow (in this case 14mm thick) Slenderpane double glazed units providing an excellent U Value of 1.4 and also an unbeatable Manufacturer's warranty of 10 years.
Finally, after the units are fitted, they are then puttyed just like a traditional sash window.