Uh oh, I didn't make it clear, my fault. The doors have removable screens and windows with little aluminum frames held in by thumb screws. Problem is, I don't have any replacements, so I have some doors with screens but no windows for winter, and a couple of doors with windows and no screens in summer.
What I need is the aluminum framed screen or window, not to have someone replace the screens.
I don't want to spend the money to replace the doors with new ones as in a few years I'm going to have new wooden screen doors made that match the tired originals that I found in the garage