Big Wally’s Plaster Magic® provides a fundamental reinforcement of your plaster walls and ceilings. The most important aspect of plaster repair is to stabilize your existing plaster first-before filling in holes and cracks. As long as the plaster is still in place, it can be stabilized and repaired. For those who are thinking of having another person do the repairs, I offer a few words of caution: beware of those who may suggest removal and replacement with drywall or modern veneer plaster. Remember-you cannot replace your original plaster with anything as good.