Before you buy a window, we recommend that you do your research via the web and written material and then shop around. Windows are complicated devices, made more complicated by the fact that recommended window types vary by climate. Climates where heating is very important have different product recommendations than climates where cooling is more important.

First, educate yourself about what kind of window is right for your climate and needs. Learn about the NFRC and ENERGY STAR® labels and why they are important. We recommend that you go to the SPONSORING MEMBERS section of this web site, click on manufacturers, and become familiar with Efficient Windows Collaborative members who sell products in your area. Go to member web sites, explore their products, information, and materials. Then prepare yourself to ask questions.

Visit retailers or distributors. Look for the product you want within your price range. Ask questions of the sales staff and let them tell you about the energy efficiency features of the products. Remember to 1) look for the ENERGY STAR®, 2) Look for the NFRC label, 3) select a product that is right for your climate and your pocketbook.

Sometimes a homeowner feels more comfortable with a particular contractor rather than a particular product. Installation is a very important issue with windows. Ask your contractor to describe the installation process. Make sure your contractor knows as much about ENERGY STAR® products and NFRC labeling as you do.

This web site has been updated with a searchable database of efficient window products.