Save on Energy Costs

Replace Old Windows with Energy-Efficient Models

Adding new energy-efficient windows can pay off at resale, as well as boost your energy savings - $126-$465 annually - if you choose the right ones.

If your windows are more than 15 years old, you may be putting up with draftiness, windows that stick in their frames, and skyrocketing energy bills. Energy-efficient windows would be a great improvement, but replacement can be very expensive. In a 2007 survey conducted by Consumer Reports, half of respondents spent $8,000 or more to replace all the windows in their homes, and 16% shelled out $15,000+.


Windows recoup much of their cost

The range for energy-efficient window pricing is wide, but Energy Star-qualified windows start around $120 for a 36” x 72” single-hung window and can go up 10 times that. With labor, you’re looking at about $270 to $800+ per window. Typically, windows at the low end of the price spectrum are less energy efficient.

But that doesn’t mean the numbers can’t make sense for you. For starters, window replacement is one of the best home remodeling projects in terms of investment return: You can recoup about 78% of the project cost in added home value, according to Remodeling magazine’s annual Cost vs. Value Report. Based on the projects outlined in Cost vs. Value, that’s a value add of about $8,200 to $10,600. Plus, if you choose windows that qualify for the new federal tax credit (U-factor and solar heat gain coefficient ratings must be 0.3 or less), you can effectively lop $1,500 off the purchase price.

You’re also likely to see modest savings on your energy bill. In general, you’ll save $126 to $465 a year if single-pane windows in a 2,000-square-foot house are replaced with tax-credit-eligible windows, according to the Efficient Windows Collaborative, a coalition of government agencies, research organizations, and manufacturers that promotes efficient window technology.

Keep in mind, though, that the savings can vary widely by climate, local energy costs, and the energy efficiency of both the windows purchased and the windows being replaced. Finally, you may qualify for low-interest loans or other incentives offered by your local utility that can sweeten the deal.