Inspect the screen door for tears, holes, bent frame, loose hinges, or damaged rollers
Remove the door from the frame if needed
Lay the door flat on a clean surface
Remove the damaged screen spline with a screwdriver or spline roller
Pull out the old screen material
Cut a new screen piece slightly larger than the frame
Place the new screen over the frame
Press the screen into the groove with a spline roller
Insert new spline to secure the screen
Trim excess screen with a utility knife
Tighten loose screws on hinges, latch, or handle
Replace damaged hinges, rollers, latch, or handle if needed
Straighten minor frame bends with pliers or gentle pressure
Reinstall the door
Test the door for smooth opening and closing
Adjust the alignment if the door rubs or does not latch properly