How do I install a bay window valance? How do I install a bay window valance?
In order to install a bay window valance, you will need to put the brackets up in the bay window frame. Place the window valance up in the window so that you can see where you would like to put it. Then, mark the area with a pencil so that you will know where to drill the holes for the brackets. Use a power drill to drill screws through the brackets and into the window frame. Once you have the brackets up, you can put the window valance up and attach the brackets to it.