How To Fix Cracks In New Plaster Walls. The thick plaster walls have so many benefits, but no sooner do we paint a room than new cracks appear. Unless the repair is small, don't attempt any plasterwork unless you're trained or experienced.
Learn how to fix plaster cracks once and for all.
1use the chisel to widen and undercut the crack. The house looks clean and new and you smile at the awesome job well done. Having cracks appear on your wall may indicate a more serious, structural issue. It reminds me of when i was a child lying in bed at night listening to the creaks and that is why cracks in the plaster are most common.