I've never done this before, so I have a couple of questions: 1) Is installing these types of windows difficult, and what is involved? Do they generally mount into the frames with screws, or how do the window units attach to the frames? 2) I have two old wooden casement windows, which will be easy to remove because they are installed with hinges. But I also have one wooden fixed or "picture" window in the middle that needs to be removed. I have no idea how this sash is attached to the frame--with glue? How difficult is it going to be to get the fixed window out, and am I going to do damage to the frame trying to get it out?
Thanks in advance to anyone with any advice on this project.