The Comprehensive Guide To Double-Glazed Window Installation Double-glazed windows have revolutionised the way we think about energy efficiency and comfort in our homes and buildings. They consist of two panes of glass separated by a layer of inert gas, typically argon or krypton, which provides better insulation than single-pane windows. One crucial aspect of double-glazed windows is the glazing, which can be done internally or externally. In this...