Shopping Tips & Long Term Savings Tips for Windows

Shopping Tips for Windows

  • Look for the ENERGY STAR label.
  • Check with local utilities to see what rebates or other financial incentives are available for window replacement.
  • High-performance windows have at least two panes of glass and a low-e (low emissivity) coating.
  • Remember, the lower the U-factor, the better the insulation. In colder climates, focus on finding a low U-factor.
  • Low solar heat gain coefficients (SHGCs) reduce heat gain. In warm climates, look for a low SHGC.
  • In temperate climates with both heating and cooling seasons, select windows with both low U-factors and low SHGCs to maximize energy savings.
  • Look for whole-unit U-factors and SHGCs, rather than center-of-glass, or COG, U-factors and SHGCs. Whole-unit numbers more accurately reflect the energy performance of the entire product.
  • Have your windows installed by trained professionals. Be sure they’re installed according to manufacturer’s instructions; otherwise, your warranty may be void.

    Long-Term Savings Tip

    • Installing, high-performance windows will improve your home’s energy performance. While it may take many years for new windows to pay off in energy savings, the benefits of added comfort and improved aesthetics and functionality may make the investment worth it to you. Many window technologies are available that are worth considering.

      Efficient windows may have two or more panes of glass, warm-edge spacers between the window panes, improved framing materials, and low-e coating(s), which are microscopically thin coatings that help keep heat inside during the winter and outside during the summer.