After repairing a stain or hole in the ceiling, it may be necessary to repair the texture.Here’s how to do this:
1) Using a putty knife, scrape off any loose or damaged ceiling texture around the stain or repair.
2) With drywall sanding paper wrapped around a small block, gently sand the edges of the damaged area.
3) Using a broad-bladed putty knife, fill the void with a smooth coat of drywall compound and allow it to dry.
4) Sand smooth again, and then spray stain sealer over the patched area to prevent the patch from bleeding through later. Allow to dry.
5) If you have a cottage-cheese type of texture, buy canned ceiling texture and spray it onto the repaired area. If the ceiling has a splotchy-style texture, you may be able to re-create the look with drywall compound and a special texturing brush. This takes a little practice—just keep scraping the compound off until you achieve the look you want.
6) Touch up with paint to match (if necessary, repaint the entire ceiling for a perfect match).