Filling deep screw holes in a wall takes a bit more patience than patching a nail hole, but the process is straightforward. The key difference is that deep holes (typically 1 to 2 inches) shrink and crack if you try to fill them in one pass, so you’ll need to build up the filler in layers. The right material, a little prep work, and proper drying time between coats will give you a patch that’s invisible under paint.
Remove Old Anchors First
If the screw hole has a plastic wall anchor still sitting in it, you need to deal with that before filling. For standard plastic anchors, back the screw partway into the anchor, then grip the screw head with a claw hammer and pull the whole assembly out. The anchor spreads when it’s installed, but most plastic types don’t grip the back of the wall too tightly and come out with moderate force.
If the anchor breaks or won’t budge, push it below the wall surface instead. Place a Phillips-head screwdriver against the rim of the anchor and tap it with a hammer until it sits about a quarter inch below the surface. This gives you room to fill over it without any bulge showing through.
Pick the Right Filler for the Job
Not every filler handles deep holes well. Standard lightweight spackle dries fast and sands easily, which makes it tempting, but it shrinks significantly in deep voids and can crack as it cures. It works fine for shallow nail holes, not for screw holes that go half an inch or deeper.
For most deep screw holes in drywall, you have two solid options. Vinyl spackle offers more strength than lightweight formulas while staying easy to work with. It still shrinks some, so you’ll apply it in layers, but it holds up better in larger repairs. The other option is setting-type joint compound, sometimes called “hot mud.” This powder gets mixed with water and hardens through a chemical reaction rather than by drying out. That chemical set means it can fill deep voids without the cracking problems that evaporation-based compounds cause. It comes in different set times (20, 45, or 90 minutes), so you can move through layers quickly.
If your walls are old plaster rather than modern drywall, use plaster of Paris or a premixed plaster repair compound. Plaster of Paris doesn’t shrink as it dries, which makes it especially well suited for packing into deep holes in one or two passes.
When You Need to Reuse the Same Hole
If you plan to drive a screw back into the same spot, like rehinging a door or remounting a shelf bracket, standard fillers won’t hold. A two-part epoxy putty is the right call here. You mix the two parts by kneading them together like a tootsie roll, then press the putty into the hole. It starts setting in about 10 minutes and turns rock-hard in 20 to 30 minutes. Once cured, you can drill into it and drive a new screw, and it will hold just as well as the original material. This is the go-to fix for stripped screw holes in wood trim and door frames too.
Tools You’ll Need
- Narrow putty knife (1 to 2 inches): A rigid or semi-flexible blade this size lets you press filler deep into a small hole with good control. Wider knives are useful later for smoothing, but the narrow one does the actual filling.
- Sandpaper in two grits: 120 to 150 grit for knocking down high spots, and 180 to 220 grit for the final smooth pass.
- A damp rag or sponge: For wiping excess filler from the wall surface between coats.
Fill the Hole in Layers
Clean the hole first. Use a screwdriver or the corner of your putty knife to scrape away any loose material or crumbling drywall paper around the edges. If the surrounding drywall paper is torn or peeling, press it flat or trim it with a utility knife so you’re working against a stable surface.
Dampen the inside of the hole lightly with a wet finger or a spray bottle. This helps the filler bond to the existing wall material, especially in plaster, and slows down drying at the surface so the filler cures more evenly throughout.
Load a small amount of filler onto the tip of your putty knife and press it firmly into the hole. The goal on this first pass is to pack the bottom half to two-thirds of the hole. Don’t try to fill it flush with the wall surface in one shot. Overfilling a deep void is exactly what causes the cracking and sunken patches people run into. Scrape the surface roughly flat, leaving it slightly recessed, and let it dry completely. Lightweight and vinyl spackle typically need 1 to 2 hours for a layer this thick. Setting compound will be ready for the next coat in the time listed on the bag.
Apply a second layer once the first is hard and dry. This time, bring the filler just slightly above the wall surface. It’s easier to sand down a small bump than to add another coat to a low spot. If the hole is especially deep, like from a toggle bolt or a long wall anchor, you may need a third layer. Each time, let the previous coat fully harden before adding more.
Sand It Smooth
Once the final layer is completely dry, sand the patch level with the surrounding wall. Start with 120 to 150 grit sandpaper to remove the bulk of any raised filler quickly. Use light, circular motions and check your progress frequently by running your fingers across the patch. You should feel no ridge where the filler meets the wall.
Switch to 180 to 220 grit for a finishing pass. This finer paper removes the scratches left by the coarser grit and gives you the smooth surface you need for paint to look right. Don’t skip this step. Coarse sanding marks show through paint, especially on walls with a flat or eggshell finish. Wipe the dust away with a damp cloth when you’re done.
Prime Before You Paint
Dried filler absorbs paint differently than the surrounding wall, which means if you paint directly over the patch, you’ll see a dull, flat spot that doesn’t match the sheen of the rest of the wall. A coat of primer over the sanded patch seals the filler and gives the paint an even base. Use a small brush or a mini roller to dab primer over the patched area and let it dry before applying your wall color. Two coats of paint over the primer will blend the repair so it disappears completely.
Textured Walls Need an Extra Step
If your wall has a knockdown, orange peel, or popcorn texture, a perfectly smooth patch will stand out even under paint. After priming, you’ll need to recreate the surrounding texture before painting. For orange peel, a light spray from a can of texture spray (sold at any hardware store) from about 12 to 18 inches away does the job. For knockdown, spray the texture, wait 5 to 10 minutes, then lightly flatten the peaks with a wide putty knife. Practice on a piece of cardboard first to match the pattern. Once the texture dries, prime it again, then paint.