The United 4500 heavy duty sliding patio door blends sturdy construction with elegant features.
Efficient and modern with a multitude of options, it is the perfect complement to any project, room, or home.
The majority of a window’s makeup is glass; United offers a full range of glass packages for all seasons.
With both interior and experior color choices, including custom colors, we’re confident we can provid you with just the color you’re looking for.
Grids between the glass are offered in flat, contoured, and SDL (Simulated Divided Lite) styles. Choose from dozens of patterns and options.
United products come with a FULL, LIFETIME NON-PRORATED WARRANTY. We believe in our windows & doors, and we stand by them. Period.
Browse the United catalog for a full product offering.