Indianapolis contractor: Low-E windows save energy

Indianapolis contractor: Low-E windows save energy

I recently moved to a home where the front windows face southwest. There are no shade trees in the front yard, so I'm expecting the front rooms to get hot this summer. I plan on replacing the window glass but I'm getting conflicting advice.

Should I get low-E glass and rely on it to block infrared heat waves, or get clear glass and have an infrared-reflective film applied? Which will give me the best results? — Angie's List member Roger Linville

It depends on how much you're willing to spend. "I believe the best results would be the low-E coating found inside the glass of new windows," says Nick Widmeyer, owner of  highly rated Mr. Window Inc., an Indianapolis window replacement company.

"A low-E, argon- or krypton-filled new window is going to be very effective at blocking UV rays and heat," he says, adding that a new vinyl-cased window starts at about $400.

If you're shopping for new windows, Widmeyer says look for windows with a U-factor rating, which indicates a window's overall efficiency, of 0.30 or lower. A lower number indicates a more efficient window system. New energy-efficient windows may also qualify for a federal tax credit of up to 30 percent of a certified product's cost up to $1,500, not including labor or installation costs. Visit for more information.

Dave Lemen, owner of highly rated Pro-Tint, an Indianapolis residential solar film installer, says installing window film on a home's existing windows can be a less costly solution.

"If you're getting brand-new windows, it's nice to order them with UV protection, but it always costs a lot more," he says. "With window film, you're looking at a cost between $4 and $6 per square foot, so it's a very cost effective way to go."

Do you have a service-related question? E-mail us at

Post New Comment


What is Angie's List?

Angie’s List is the trusted site where more than 3 million households go to get ratings and reviews on everything from home repair to health care. Stop guessing when it comes to hiring! Check Angie’s List to find out who does the best work in town.

Local Discounts

Daily deals up to 70% off popular home improvement projects from top-rated contractors on Angie’s List!