Energy Star Windows - Chicago Suburbs ContractorsYes, replacing your old drafty windows with new energy efficient windows can in fact save you money on energy costs.  According to Energy Star, replacing single-pane windows with Energy Star-qualified windows, you could save up to  $126 to $465 a year (depending on the number of windows you replace and where in you live).  If you’re looking to make your home more energy efficient and reduce heating and cooling expenses, then replacing old windows with new energy efficient windows can do just that.  Energy efficient windows are produced with better materials that have a higher insulating value. Not only the materials themselves help make windows more energy efficient, but it’s also the design and construction of the window itself as well.  When considering to replace your windows, ask to make sure that they are recognized as energy efficient by Energy Star.