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.

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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Learn Ways to Cut Energy Costs
There are many other ways to reduce your energy bills. Here are some tips on how to calculate the savings you'll get by using more energy-efficient windows.
Replacement Windows Savings