Greensboro's Source for Quality Double Pane Glass Units by WOWFIX Replacing foggy or failed double pane glass units is one of the most common window repairs needed in Greensboro homes. If you notice condensation or cloudiness between your window panes, it likely means the insulated glass seal has failed, compromising energy efficiency. At WOWFIX, we provide Greensboro, NC homeowners and businesses with premium double pane glass units to restore crystal clear views and insulation. As a leading Greensboro window company for over a decade, WOWFIX carries an extensive selection of double pane glass units to match any window brand, size, or shape. We make the glass replacement process simple and affordable.