Dr. Energy Saver energy conservation experts replace each window with extra care to ensure the highest quality of energy efficiency and to give the best energy savings and return for your investment. In this job, Dr. Energy Saver replaces a home's old wooden windows with high efficiency windows. To prevent air leakages around the new windows, they inject spray foam into the shim space . Larry Janesky, owner of the Dr. Energy Saver network of franchises, explains some of the main features of energy efficient replacement windows and their efficiency ratings you see on labels while shopping. If you want to save money and energy with replacement windows, let us help you. Give us a call for a free window replacement estimate from a Dr. Energy Saver home energy expert in your area!