Window Screen Replacement
I replaced the screen in our screen door. I seem to recall I got the screen material and the spline roller tool on Amazon, reusing the original spline. I haven't had a rip in the window screens, but if I do, I would plan to replace it myself again. The spline tool was helpful, but a small flathead screwdriver, combined with lots of care & patience worked, too.
If the screen frame was bent or damaged, I'd probably have a different response.