We can supply and install double glazing or triple glazing or even specially made up sealed units incorporating performance glass options such as acoustic glass if you are looking to combat a particularly significant noise problem for example - everything we do is custom made; we can advise and tailor your products to suit your own requirements. One thing is standard regardless of your preferred window configuration and that is that all of our windows are A-rated for energy efficiency as standard. All of our windows utilise Pilkington K-glass, a low-emissivity glass on the inside pane and the glass panes are separated (whether double or triple glazed) with a warm-edge spacer bar around the perimeter - this assembly is what is referred to as sealed unit. In addition to the K-glass on the inside pane, we use another type of performance glass for the outer pane, Pilkington Opti-white glass. Finally, the unit is filled with an inert gas (Argon) and it is hermetically sealed so that it is completely air-tight.