People ask a lot from their windows. They want durable, low maintenance, stylish and energy efficient windows that open for air circulation, and let in the light and the view. Not all windows can perform these jobs equally well, so the decisions you make are important. A window will typically last 20 years or more, which means the replacement window and door choices you make now will impact your home’s energy efficiency and comfort for years to come.

High performance windows take advantage of technological improvements in solar control and energy efficiency, incorporating low-E coatings, inert gas fills, and better spacers and frames. This guide identifies energy saving window and door technologies and explains how they work.

If you’re shopping for energy efficient doors and windows, this information will help you make well-informed decisions.

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