If your window screen frames are in good shape but the actual screen mesh is old and torn, you might need to either rescreen them, or repair them. We rescreen frames all the time in Oak Park and are always in the area. If your aluminum screen frames are in ok condition there is no need to replace the frames.
The Screen mesh we use is the charcoal fiberglass 18×14 fiberglass screen mesh material, when we rescreen the spline and tabs are replaced as well. We like the window screens to fit the way they should, not only do they need a tight and snug fit but also, you need to be able to take them in and out easy and without having to be a screen pro like us.