Use a hole saw kit to drill the door edge and face. Ensure the bolt aligns with the strike plate and reinforce with long screws into the door frame.

Apply WD-40, olive oil, or petroleum jelly to the hinge pins. For stubborn squeaks, remove the pin, clean it, and reinsert it after lubrication.

Apply WD-40, petroleum jelly, or bar soap to the hinge pins. Remove the pin, clean it, and reinsert for stubborn squeaks.