You definitely need a drill with screwdriver bit to get the screws in. These do not have an in-window mounting option if you want to use the wood valance. So, we cut the edges off the valance to make them flush with our window frame. The finish chipped a bit, but we put some wood finish on those spots, so you can't really tell. They look great and they block A LOT of the light our old cheap vinyl blinds did not block! I am definitely glad I got them!