U S Block Windows® : Acrylic Block Windows

U S Block Windows is the innovator in the acrylic block window business. We offer the broadest line of energy-efficient acrylic block windows, bringing luxurious looks and privacy to homes across America.

A variety of window designs, block patterns and frame choices add architectural flair, while letting in natural light. Our acrylic block windows are easy to install and feature a service-friendly drop glaze design. They are perfect for new construction or retrofit, are available in custom sizes that can be built to most any height, any width, and operables (open and close) that let in natural breezes. Acrylic block windows look like conventional glass block windows but they are 75 percent lighter and easier to handle.

U S Block Windows offers the quickest lead times in the industry backed by a limited lifetime warranty. Our 8" and 9" acrylic block windows have options available that are Energy Star® - qualified for all regions of the United States.