A lot of homeowners have no idea how old their windows are and when or if they should be replaced with more energy-efficient ones. There are obvious signs -- drafts, cracks and light streaming through the edges -- that all make for strong reasons to invest in new windows. But if you have single-pane glass windows, they definitely need to be replaced. Single-pane glass offers virtually no insulation, which makes it very inefficient and can drive your heating and cooling costs way up. Replacing those with double- or triple-pane windows will have a major impact on your bills and make the investment worth it in the long run.
ANDREWS MCMEEL SYNDICATION