Dr. Energy Saver was called to help transform the basement of a 100-year-old house into an energy efficient and comfortable space with insulation and replacement windows. This particular basement had irregular stone walls, so rigid foam insulation -- the best option for insulating a basement -- could not be used. Fiberglass blankets were substituted, and a 20-mil-thick vapor barrier was used to keep moisture from evaporating into the basement. The old basement windows were also replaced with new, Low-E replacement windows, for additional improved energy savings. For a Free Basement Insulation or Energy Upgrade contact Dr. Energy Saver.