Small defects on the surface of drywall sheets are very easy to restore with ordinary puttying of these places. To do this, with the help of putty, the wall must be taken to one plane, let it dry and sanded to a very smooth state. However, a large hole in the wall will require great efforts from you, and you can apply a whole range of measures. To restore drywall, it is necessary to use its remains (scrap and small pieces), as well as a construction special glue with wood waste. Be sure to protect furniture during the repair.