Cost & hiring
Drywall repairs: patch kits, California patches, or a new section
The size of the hole decides the repair. A nail hole takes a fingertip of spackle; a fist hole takes a patch; a water-stained ceiling takes a saw.
Repair by size
| Damage | Repair |
|---|---|
| Nail holes, small dents | Spackle or lightweight compound, one or two thin coats |
| Nail and screw pops | Drive a new screw 1–2 in away, reset or remove the old one, fill |
| Holes up to about 1 in | Fill with compound, a second coat after drying |
| Holes 1 to 6 in | Self-adhesive mesh patch, or a California patch |
| Holes 6 in to about 16 in | Cut a square, add backer strips, screw in a piece of drywall, tape |
| Larger damage, water damage | Cut back to the framing and replace a section |
| Cracks at joints and corners | Cut out loose tape, re-tape with paper, refinish |
The repair patch calculator picks the method by hole size and lists the materials.
The methods
Mesh patch. A thin metal or fibreglass plate with self-adhesive mesh around it. Stick it over the hole, cover it with three thin coats of compound, feathering each 3 to 4 in past the patch. Fast and good for doorknob holes.
California patch. Cut a piece of drywall 2 in larger each way than the hole. Score the back and peel off the gypsum around the edge, leaving a square of board with a paper flange all round. Cut the hole square to the size of the board, butter the edges and back of the flange with compound, press the patch in, and finish over it. No tape, no backing, and the paper flange gives a thin, invisible edge.
Backer strips and a new piece. For holes up to about the space between studs: cut the hole square, screw 1 × 3 or plywood strips inside the wall across the opening, screw in a piece of new board of the same thickness, then tape and finish the seams like any joint.
Section replacement. Cut back to the centres of the nearest studs, so the new board lands on framing, and replace the whole section. For ceilings, cut back to the joists. Then tape and finish as new work.
Two repairs, sized by the calculator
- Two 4 in holes: a self-adhesive mesh patch for each (6 in patches), about 16 fl oz of compound, three thin coats
- One 12 in hole: a 14 in square of new 1/2 in board, two backer strips, 8 screws, tape, about 24 fl oz of compound; tape coat and two finish coats over a day or two
Matching the wall
- Thickness. Match the existing board: 1/2 in in most houses, 5/8 in on garage and fire-rated walls. Measure at a cut edge.
- Texture. Textured walls need the texture matched over the patch: aerosol orange peel and knockdown for small areas. Practise on cardboard. The guide to drywall textures covers them.
- Primer. Prime every patch before paint, or the compound shows through as a dull spot (“flashing”). Paint the whole wall, not just the patch, if the paint is old.
What pros charge
Published cost guides give typical prices per repair; the repair cost calculator adds them up, with each extra repair of the same kind at 40% of the first (our estimate of shared setup and drying):
| Repair | Typical price | Source |
|---|---|---|
| Nail or screw pops | $10 – $60 each | HomeAdvisor |
| Small holes | $50 – $200 | LendEDU |
| Medium holes (4–8 in) | $150 – $300 | Fieldcamp |
| Large holes (8 in and up) | $200 – $400 | Fieldcamp |
| Water-damaged section | $400 – $800 | Fixr |
| Average repair job | about $600 | HomeAdvisor, 2025 |
Two typical calls
- Six screw pops and a doorknob hole: $180 – $480 by a pro; about $18 of materials DIY
- A large hole and a water-damaged section: $600 – $1,200 by a pro; about $85 of materials DIY
Single small repairs are often priced as a minimum visit, so grouping repairs into one call saves money.
Screw pops
A pop is a screw or nail head pushing out through the finish, usually as framing lumber dries. Press the board tight to the stud and drive a new drywall screw 1 to 2 in from the popped one, just below the surface. Drive the old screw back in or pull it out, fill both with compound, sand and prime. The guide to screws per sheet covers driving them right.
Cracks
Cracks along joints are usually loose or poorly bedded tape; cracks running diagonally from the corners of doors and windows are usually framing movement. Cut out loose tape, fill the gap with setting compound, re-tape with paper tape, and finish. Mesh tape with ready-mix is a common cause of recurring cracks; the guide to paper vs mesh tape explains. A crack that keeps returning after a careful repair may be a structural symptom worth having looked at.
Water damage
Fix the leak first and let the wall dry. Board that is soft, crumbling, stained through, or smells of mold is cut out and replaced, along with wet insulation; a stain on board that is still firm can be sealed with a stain-blocking primer and repainted. Check the framing behind for rot. Mold over a large area is a job for a remediation contractor.
Before you cut
- Look for wires and pipes. Near switches, outlets, sinks and toilets, cut shallow and look in.
- Old compound made before about 1980 may contain asbestos; test it before sanding or cutting into it.
- Dust. Sanding a patch makes dust; the guide to sanding drywall keeps it down.