If your current single-pane windows are in good shape, storm windows with low-e coatings may be a good way to go. For colder climates, they work nearly as effectively as double-pane windows. However, if you’ve noticed a lot of heat from the sun passing through your windows in the summer time, storm windows might not be right for your home because they don’t do a very good job of blocking out the sun’s heat in hotter climates.

If you’re interested in other, more affordable ways to save energy in your home, check out our online energy audit calculator. This tool is a quick and easy way to get an idea of what upgrades would be most cost effective for your home and how much money you can save. For example, upgrading your insulation usually has a much faster return on your investment than replacing windows and also has a great impact on your utility bills.