Our double hung replacement windows feature the traditional look of mortise-and-tenon joinery and a wide range of color and design options. Both the lower and upper sash of our double hung windows may be opened to increase ventilation. In addition, our double hung windows are designed to tilt-in for easy cleaning, making Renewal by Andersen® double hung replacement windows a great choice for any home. The handcrafted details make the double hung an excellent choice when traditional styling is important. For restoration projects the Renewal by Andersen® San Francisco double hung window is hard to beat.