Energy innovation and expertise
Guardian is making a world of difference.

Over the past 10 years, no company has invested more in the development of energy-performance glass than Guardian. Drawing on the collective expertise of an international team of glass scientists, and transferring technology from a diverse range of commercial and electronic industry applications, no company offers a broader choice of innovative glass solutions for the residential window market. Nor does any glass company offer a more experienced and knowledgeable level of customer service. From product and platform planning to physical design assistance, our expertise is just a phone call away.
Energy solutions for any region, climate or elevation.
It’s obvious that the heating and cooling requirements of a home in Boca Raton, Florida, are different from those of a home in Bangor, Maine. So ClimaGuard Glass is available in a variety of highly customized packages. Most are precisely engineered for specific regions and elevations. One product, ClimaGuard 63/31, offers the simplicity of a “one-size-fits-all” solution for ENERGY STAR qualification in all U.S. zones.

