Designed to replicate the traditional timber sash window whilst incorporating the benefits of uPVC. Our sash windows operate like traditional box sash windows – both the top and bottom sashes slide up and down as standard, and tilt inwards for easy cleaning. They are also double glazed, A energy rated. All our sliding sash windows are made-to-measure and delivered to your property ‘ready to fit’. Since they come with a 10-year warranty, you don’t have to worry about your investment.