Window Screen RepairPlay | Download (Right Click, Save As...)
Many people think repairing screens is a very tough job. But replacing a damaged screen can be done with just a few minutes and a few simple tools: a utility knife, a pair of pliers, and a special tool called a spline roller, which you can find at the home center for less than 10 bucks.
First remove the old screen by pulling out the spline, which is like a piece of rubber rope. Then spread out a roll of new screen material over the frame, and cut it to overlap all sides by an inch or so. Then use the spline roller to force the old spline back into the track to lock the screen in place.
Finally, when the spline is all in, you can trim off the excess screen with a utility knife and you’re done.