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Windows, Doors & Vinyl Siding Long Island, NY

Window World is the largest replacement window company in the United States. Stationed in Farmingdale, Window World of Long Island, New York proudly serves all of Long Island. Because of our superior quality products, and exceptional warranty guaranteeing them, our vinyl replacement windows are energy star certified and have earned the coveted Good Housekeeping Seal. Our goal is to serve all of Long Island with the finest quality range of the following home replacement products:

Window Styles

Replacement Doors

Additional Products

New vinyl windows can make a major impact on the external appearance of your home, as well as increase property value, and save you money on energy costs. The sleek, clean design of a new replacement window will draw attention from neighbors as your home shines like new again. Window World of Long Island’s new vinyl replacement windows also meet SolarZoneTM energy-efficiency standards, which will save you money on heating/cooling bills. New window replacements will correct any existing leaks and gaps between frames, as well as insulate your home better due to new technological advances in window glass.

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