Your Walls, Drywall or Plaster?

If you look at your wall and are not sure if it is drywall or plaster, you are not the only one. Older homes often have plaster walls. Newer homes usually have drywall. The repair method matters. The materials matter. The price can change too.

At MrWalls Drywall & Painting, we repair both. We work on cracks, holes, water damage, peeling tape, loose texture, and damaged ceilings. We also patch problem spots where old plaster meets newer drywall.

How to Tell if Your Walls Are Drywall or Plaster

Drywall usually sounds more hollow when you tap it. Plaster feels harder and more solid. In many older homes, plaster sits over wood lath. In newer homes, drywall hangs in sheets over framing.

You can do the knock test, drywall sounds hollow, and plaster sounds solid. Since plaster is very similar to concrete, it is very hard. Using a picture hanging nail is one of the best methods of determining if you have drywall or plaster. A nail will go into drywall even by hand, due to the softness of gypsum. If the nail will not go into the wall, even using a hammer, you have plaster. With Plaster a thin picture hanging nail will bend before it is able to penetrate the plaster.

A few common signs help:

Plaster often cracks in lines that are not perfectly straight and may even look like a spider web of cracking in some areas. Drywall, on the other hand, almost always cracks in straight lines along the seam or corner where two sheets come together. Drywall dents easily, popped nails, straight tape cracks, or corner tape cracks are straight.
If you remove a cover plate and see a wall thickness close to three-quarters of an inch or more, plaster is more likely.
If the wall has a sandy or rough base under the paint, plaster is common.

You do not need to figure it out on your own. We inspect the wall first and tell you what you have before we start repairs.

Why the Difference Matters

Drywall and plaster do not get fixed the same way. Drywall repair often involves cutting out damage, adding backing, hanging a new patch, taping joints, and finishing the surface smooth. Plaster repair may call for stabilizing loose areas, filling deep cracks in layers, bonding new material to old surfaces, and matching the finish.

Using the wrong method leads to more cracking, uneven patches, and paint problems later.

Common Problems We Repair

We handle small repairs and larger wall damage, including:

Cracks above doors and windows
Holes from doorknobs or moving furniture
Water-damaged ceilings and walls
Bubbling paint from moisture
Loose joint tape
Sagging drywall
Plaster cracks and broken sections
Bad patches from past repairs
Texture patches that do not match

Repair Options for Drywall

When your walls are drywall, we focus on clean, solid repairs. We cut out weak material, secure the area, tape seams, apply compound in coats, sand, and prep for paint. The goal is a flat surface that blends into the rest of the wall.

For damaged corners, we replace corner bead when needed. For ceiling stains or soft spots, we check for moisture damage before closing the area up.

Repair Options for Plaster

When your walls are plaster, we look for loose material first. Some plaster stays solid and only needs crack repair. Other areas need deeper patching. If the plaster has pulled away from the lath, the repair needs more than surface filler.

We repair plaster with the right base substrate, also known as lath, either wooden lath, blueboard gypsum panels, or metal expanded wire mesh. We trowel the plaster smooth so the patch blends in and looks right. We also smooth rough transitions where plaster repairs meet painted trim or nearby drywall.

Drywall Over Plaster

In some homes, the best fix is not a patch. Sometimes the better option is to install new drywall over old plaster. This works well when the original plaster is badly cracked, uneven, or failing in many areas. It creates a fresh surface and often saves time compared with full tear-out.

We will tell you when a repair makes sense and when covering or replacement makes more sense.

What to Expect

We keep the process simple.

First, we inspect the damage.
Next, we identify whether your walls are drywall or plaster.
Then, we explain the repair steps and what finish you can expect.
After that, we complete the repair and leave the area ready for paint, or we handle the painting too.

Why Homeowners Hire MrWalls

We work on the kind of wall and ceiling problems people deal with every day. Stress cracks. Water stains. Old plaster. Bad patches. Settling damage. Small holes that turned into bigger repairs. We know how to match the repair to the wall type.

That matters in older homes. It matters in rentals. It matters when you want the patch to disappear after paint.

Need Help Figuring Out Your Walls?

If you are asking, “Are your walls drywall or plaster?”, we can help. MrWalls Drywall & Painting repairs both. We will look at the wall, explain what is there, and give you a repair plan that fits the damage.

Send us photos or schedule an estimate. We will help you get the wall fixed the right way.