Maximize your view with contemporary Renewal by Andersen® Acclaim™ gliding windows. Our gliding windows, also called sliding windows, use more glass and less frame--in fact, the maximum glass area of any operable window. A gliding window is the perfect space saving solution when a projecting window could interfere with walkways, patios or decks. Both sides of our gliding windows open on smooth, easy-to-maintain tracks, and lift out so you can easily clean the exterior glass from inside your home