Energy Efficiency Upgrade – How to Seal Up a Basement Window July 27, 2011 ryw Energy Efficiency, Energy Efficient Products & Technologies, Step By Step Difficulty: 1 of 5 Basement windows are often a source of heat loss in a home. Follow the steps in this video to address the issue in your home. Materials: Related Posts How to Repair Chipped or Cracked Stucco Repairing chipped or cracked stucco is an easy project, but you'll need to set aside a few days to complete it. How to Prepare a Room for Painting Preparing a room for painting will save on cleanup time and will make the finished job look professional. How to Fix Brown and Bare Spots on Grass Brown and bare spots of lawn can be brought back to life easily.