Fix a Drywall Hole
Luckily, it’s a pretty easy to fix a drywall hole. With some specialized tools and material, scrap wood, compound, and sandpaper—and matching paint of course—fixing drywall holes is an exercise in simple geometry.
Using a retractable razor blade, cut out any paper or extra material that’s hanging out or loose.
Use a self-adhesive patch (it looks like metal mesh that can be found at any home improvement store) and affix it to the cleaned out hole. Let it dry out.
During that time, mix up some drywall compound (sometimes called “mud”). Once that’s at a pasty consistency, use a tape knife and spread the compound around on the screen. Make sure that your drywall compound is thick enough that it doesn’t just ooze through the mesh. Cover the patch completely.
Next, add another coat of the compound onto the patch, covering the first coat completely. Using a wet rag, blend the outside of the patch into the surrounding wall, so there’s not a noticeable edge to where the compound ends and the wall begins. Once the compound dries out completely, you can sand, paint and prime it to match the surrounding wall.