The 3800 Flat Frame series is available for new construction applications. A versatile window with many potential uses, the 3800 boasts clean sightlines, solid performance, and a variety of options to complete your project.
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.
7400 Picture Window
7400 Slider Window