Making sure our windows are efficient makes sense–windows account for 10 to 25 percent of our heating bills because of leaked conditioned air. If you aren’t quite ready for the expense and hassle of installing new, energy-efficient windows, check out our easy ways to winterize existing windows and keep your home–and your pocketbook–comfortable.
Back to Basics
Check the perimeter. This may seem obvious, but even small cracks or other structural imperfections let hot air pour out of your home. Take a good look at your windows. Are there any easy-to-spot problems such as cracked glass, rotting wood, or obvious air or water leakage? If so, address those issues either as a DIY project or by calling a professional.
Seal it up. Now that your windows are sound, focus on caulking and weather-stripping. Use caulk for stationary cracks, gaps or joints less than 1⁄4-inch wide. Use weather-stripping for components that move.
Green Real Estate Appraiser 