Locate the damaged area and check for moisture or structural issues
Stop any active leak before repairing the ceiling
Remove loose drywall, peeling paint, and crumbling joint compound
Cut out damaged Sheetrock to clean, solid edges if needed
Add backing boards or drywall support behind larger openings
Cut a replacement drywall patch to fit the opening
Screw the patch into the backing or ceiling joists
Apply drywall tape over seams
Cover seams and screw holes with joint compound
Let the compound dry completely
Sand the repaired area smooth
Apply a second and third coat of joint compound as needed
Sand between coats for a smooth finish
Prime the repaired area
Paint the ceiling to match the surrounding surface
Recheck for cracks, dents, or uneven spots after drying