storm windows Storm windows are protective windows placed over existing window panes to improve insulation, block noise, and prevent drafts. Learn about the different types of storm windows, their pros and cons, and how to install them in your home..viet69. Storm Windows If you have older windows in your home, and are looking for a way to improve the energy-efficiency of that home, a good option is to use storm windows mounted over your existing windows. According to the U.S. Department of Energy, “Storm windows can reduce heat loss through the windows by 25% to 50%”. Even though storm windows are typically built with only single-glazed ...79king 6 Aluminum storm windows are a reliable and stylish choice for those seeking superior performance in home improvement. Storm windows are available in a wide range of styles, including the two track double hung, three track double hung, three track slider, end vent slider, and picture storm window/basement storm.