Get matched with top plaster repair specialists in Middlesex, NJ

You can plaster over regular drywall, but it's essential to prepare the surface properly. Before plastering, the drywall should be clean, free of dust, and any loose or peeling paint should be removed. Applying a primer specifically designed for plastering can improve adhesion. Some professionals recommend applying a base coat of plaster or joint compound to create a better surface for the plaster to adhere to. Proper preparation ensures a smooth and durable plaster finish over regular drywall.

If the holes in the plaster are small, you can fill them with layers of patching plaster until they’re filled. After it dries, you can sand the plaster and paint over it. If the hole is much larger, consider using bonding plaster first and then a layer of patching plaster, completing the process with sanding and a layer of paint.

Smaller is better when patching holes with spackle. Any holes wider than four to six inches in diameter tend to be too wide to repair with spackle alone. You'll likely want to patch bigger holes with a drywall panel. 

Even holes measuring up to 6 inches may be challenging to fill with spackle alone. For best results, purchase a wall repair patch made from wire mesh. Cut the patch to fit over the hole, then use the spackle to hold it in place. Apply the spackle over the patch as you would for a smaller hole.

While it is possible to repair minor plaster cracks or holes yourself, it is generally not recommended for larger jobs or if you want a professional result. Plaster repair can be difficult in practice; proper wall preparation and achieving a smooth, seamless finish that blends with the existing wall requires experience, especially on textured surfaces. Hiring a professional ensures the repair will be durable and last longer, potentially saving you money over time. A pro can also determine if the cracks are from normal expansion or a more serious underlying issue.