Hy-LiteĀ®, a U.S. Block Windows Company, is the premier manufacturer of acrylic block windows in the United States. Founded in 1988, Hy-Lite began with a vision to modernize traditional glass block windows into something more energy-efficient and customizable. In the years since, we have added decorative glass windows for stylish privacy as well as true glass block windows for those who prefer traditional block. We are also proud to offer contract molding services in our manufacturing plant in Pensacola, Florida.