The lower inside sash slides up, and an upper outside sash slides down, improving air circulation and making full screens ideal. Double-hung are easy to clean because you can tilt the sash on any of the windows in our tests. Also a smart choice if you plan to install a window AC.
New windows can enhance the look of your home and make it quieter and less drafty, and new windows are easier to clean and maintain than old windows with combination screens and storm windows. Use our replacement window buying guide to learn which materials, types, and features are most important to consider.