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Double Glazing Window Installers Double-glazed windows are a great option to cut down on energy bills in your home. They are composed of two panes separated by a spacer, which contains silica filters that absorb moisture. You might be able find double glazing providers through local DIY stores, or through hardware suppliers. You can also ask your friends and family members for suggestions. Reputation Double glazing can increase the efficiency of your home's energy consumption while decreasing noise