How to Compare the Brands, Prices & Efficiency of Windows

While original windows offer historic beauty, sometimes frugal alternatives are necessary to save on energy bills.

For homeowners, window replacement can be a large investment. With a variety of window types and manufacturers to choose from, you can replace windows with the confidence that your money is well spent now and for coming years.

Considerations

Consider the exterior architecture of your home when choosing window frame material.

Calculating a budget for window replacement should take into account both initial expense and future energy bill savings. Cheaper windows may cost more in the long run due to heat and cooling loss and elevated energy bills; more expensive windows may not offer energy-efficient features. Window frames also vary in material and in cost.

Terminology

If you are replacing antique windows, preserve them by using them in interior decor or offer them to salvage yards.

Choose a window with a low U-factor, or U-value, to maximize energy efficiency. The U-factor of a window measures heat loss. Windows may also have a separate U-factor for glazing. Some window frame materials are more efficient than others, as well. Materials include wood, vinyl, composite and aluminum. Some windows use gases to insulate your home, including gases like argon. A low-emittance coating or glaze on the window is often referred to as low-E coating or glaze.

Manufacturers

To counteract winter drafts around new or old windows, hang heavy drapes.

Window manufacturers offer low- and high-end lines of windows, with a variety of frame and efficiency options. They also frequently offer customization options. Research quotes from area providers on comparable products before purchase.

References

• Fine Home Building: Understanding Energy-Efficient Windows
• U.S. Department of Energy: Selecting Windows for Energy Efficiency

Resources

• Consumer Reports: Windows
• Replacement Window Center: How to Compare Replacement Windows