ENERGY STAR helps you meet and exceed energy-efficient standards to make your building or renovation purchases easier and long-lasting. Learn how you can save money, energy and the environment with a simple window replacement.

Better Window Insulation An Envirosealed window or door with the Duralite insulating glass spacer is designed to trap air inside small, sealed chambers, which act as insulating pillows of air that reduce energy loss. This can reduce energy costs and improve the energy efficiency of a window by as much as 10 percent.
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A Better Choice for Energy Efficiency Windows and doors account for up to 25% of your energy use. Save money by installing energy efficient windows and doors. Reduce your energy consumption, insulate your home better, protect the environment and lower your heating and cooling bills.
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