Our Thermal Liquid Window Coating, SketchNanoGard will help you save money and lower your energy consumption. Up to 71% of heat enters through your windows in the summer, and up to 48% of heat is lost through your windows in the winter. An average household or municipal building will see a return on their investment in 2 to 4 years after having their windows coated, and will continue to save money for every year thereafter. Visit us at Window Innovations to learn more: www.WindowInnovations.ca