Use a small flat-head screwdriver, nail punch, or sharp object to lift the spline out of the channel. Keep the spline, but remove and discard or repurpose the torn screen.

3. Push the screen into the channel using the flat wheel of the spline roller. 4. Beginning in a corner, place the spline (you can reuse the spline if it's in good condition) along the channel.

Discard the old screen and spline and leave your frame flat. Cut and place your new screen. Next, use scissors to carefully cut your new screen material to size.

Replacement screen big enough to fit over the frame. Screen roller tool. Screen spline. Tape. Utility knife. To replace a screen: Carefully remove the existing spline from your window or door. A ...

To replace a screen: Carefully remove the existing spline from your window or door. A screwdriver or similarly small tool is helpful to pry up a little bit so you can firmly grasp it and pull.