Re -drill the walls in this case do not have to.

From the walls it is necessary to shoot cornices, mirrors, shelves and paintings. All fastenings on which these things hung also need to be removed. If after the repair ends all the holes for bolts and screws are needed, then matches should be inserted into them and they should stick out at a distance of 6 mm from the surface of the wall. Re -drill the walls in this case do not have to.