Place a dropcloth on the ground to protect your floor from falling debris.
Scrape off the popcorn texture around the leak area with a putty knife. Clear an additional 3 inches around the leak area.
Sand the area with a sanding block removing remaining texture on the ceiling. It is important to make the ceiling smooth as possible or the popcorn repair spray may not stick.
Prime the area with a paint brush using a dabbing motion. Give the primer 24 hours to dry.
Lightly spray the area with the popcorn repair spray. Hold the repair spray nine to 13 inches away from the ceiling and spray in a downward motion.