On our quotes, we price per pane rather than per window, which helps keep things fair and transparent. A window is the entire unit installed in the wall, including the frame and all the glass sections, while a pane refers to each individual piece of glass within that window. Some windows have just one pane, while others may have several smaller panes separated by bars. Because each pane needs to be cleaned individually—inside and out—pricing per pane allows us to accurately reflect the time and care required to get every piece of glass sparkling clean.