Glass areas in modern building are becoming ever larger and in refurbishment, window openings are sometimes enlarged. Window elements with fall protection are often used, which undertake the additional function of fall protection, for example of a handrail. Furthermore, opening casements over the entire window height are often installed and “French balconies" of metal are replaced, for example, by appropriate glass panel fillings screwed directly to the window frames. This means that the fixing of the window frame is as important as that of glazing with fall protection. The article describes the current status of this subject and explains fixing into the structure.