How To Fix Large Cracks In Walls. Apply touch up paint to the patch in your wall color. How to repair wall cracks.
Sand down any rough edges on the crack/hole with sandpaper. How to fix small cracks in plaster. Apply touch up paint to the patch in your wall color.
If your walls are plaster, check for damage on the wooden lath boards, and fix them first if necessary.
There are many different fillers and plaster products available, so be sure to for larger chunks of missing plaster, you might want to use metal or plastic corner beading. You need to assess whether your walls are plaster or plasterboard in order to select the most appropriate repair method. How do you know if wall cracks are serious? How to repair wall cracks.