Before you tear out your plaster there is a simple and money saving plaster repair that you can use to take care of any cracks or sagging plaster in your home.
Large Plaster Wall Hole Repair Tip Part Two
6 Ways to Repair Peeling Plaster Walls - wikiHow
How To Patch Plaster Walls
How to patch and repair plaster walls with drywall for the best results
Repair/Patch this Plaster Wall : r/drywall
How to repair cracked plaster — Gaye Gardens
How to repair cracked plaster — Gaye Gardens
Plaster Repair for DIYers - No Need to Rip It Out - Old Town Home
How to Repair Hairline Cracks & Damages on plaster. – OMCON
How To Deal with Plaster Walls & Ceilings — A Primer
How To: Repair Plaster Walls