Guardian Industries is one of the largest manufacturers of float glass and fabricated glass products in the world. In residential, commercial, and interior spaces, energy efficiency is a top priority for the global glass company. Over the past 10 years, no company has invested more in the development of energy-performance glass and no company offers a broader choice of innovation glass solutions for the residential market than Guardian. Nor does any glass company offer a more experienced and knowledgeable level of customer service. From technical support to staying on top of government and voluntary regulations, think of Guardian as your "in-house" energy efficiency expert. From product and platform planning to design assistance, our expertise is just a phone call away.