US Block Windows manufacturers high quality acrylic and glass block windows. Due to the weight of glass block windows, the only type of installation available was a fixed or picture window. With the advent of the acrylic block window, and our technologies, we are able to offer not only a beautiful picture window but also awning, casement, sliders, and hung windows. This allows you to add the beauty of glass block windows into a variety of applications. Each of US Block Windows are manufactured r