Compare 1 price for Crystal Casement uPVC Window Right Hand Opening Next To a Fixed Light 1190mm x 1190mm Obscure Triple Glazed White — from £370.99 across 1 UK seller including Toolstation.
The window did not include any instructions but I did download them from Crystals website. I would brace the frame before using expanding foam as the frame is quite flexible. Once fitted the triple glazing reduces the noise from outside a lot.
Brilliant will use again. Fast delivery fab goods definitely recommend!!!