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Advantages of Double Glazing Hinges The hinges of double-glazed windows are vital to their functionality. They are available in a wide selection of styles and materials to meet a variety of aesthetic preferences. They also provide smooth operation. If you experience difficulty opening and closing your windows, or if you notice gaps or drafts in your upvc hinges, they may need to be replaced. Luckily this is a relatively easy job. Easy Clean Unlike traditional window hinges, easy clean hinges don't require disas