Window glazing is the actual glass part of a window. Glazing is mounted in the window with the assistance of glazing putty or silicone. The act of replacing glass is known as re-glazing, and there are a number of reasons to re-glaze a window, ranging from the need to replace broken glass to a desire to outfit a window with more energy efficient or safer glass. We glaze/re-glaze up to 3 story buildings. We only work with the glass itself and do not construct or repair the frames.