Double-Hung Windows from Window World are the perfect combination of beautiful, classic style and next-generation technology. With two operating, vertically stacked lites, these superbly crafted windows bring easy maintenance and energy efficiency to new heights. A wide selection of decorative options makes upgrading any home uniquely personal. Beautifully refined silhouette and advanced energy-saving technology, Window World 4000 Series delivers exceptional style, strength, energy efficiency and value - everything today's homeowners are looking for in a quality replacement window, and more.
The Window World Premium Sliding Patio Door Collection features three attractive styles: Contemporary, Classic and French. Inspired by the fundamentals of product excellence, these sliding patio doors are masterfully crafted for smooth and reliable operation, while also helping to protect your home from inclement weather. A premium vinyl construction, heavy-duty mainframe and sash, multi-chambered extrusions and steel-reinforced interlocking meeting rails combine for superior strength and structural integrity.