
How to Fix Damaged Drywall Corners: All You Need To Know
- Protect Your Space And Yourself. Have a drop sheet, or any kind of material you can use to protect the area where you...
- Pry Away Damaged Drywall. Using something sharp – like a screwdriver, putty knife, or any other sharp object – pry away...
- Clean Up. Using a damp rag or sponge, you want to pat away any dust...
How to finish inside corners of drywall?
How to Finish Inside Drywall Corners
- Mud the Corner and Apply the Tape. Use a roll of paper drywall tape to finish inside corners, not fiberglass mesh. ...
- Stick the Tape Down. Use the joint knife and working on one wall at a time, stick the tape down tightly. ...
- Apply a Second Coat of Joint Compound. ...
- Apply a Finish Coat of Joint Compound. ...
How to fix a damaged drywall corner?
Tools and Materials
- 5-in-1 tool
- Flexible putty knife
- Vinyl spackling compound
- Drywall screws, paneling nails, or roofing nails
- Screw gun or hammer
- Joint compound
- Taping knife
- Dust mask
- Medium sandpaper (120 to 150 grit) or sanding sponge
How to crack fill drywall corners?
- Once the first side is completely dry, apply joint compound to the other side.
- Smooth, feather and let dry.
- Repeat the process to apply a third coat on both walls, one wall at a time. Let dry overnight once more, and then sand and smooth.
How do you repair a big hole in drywall?
Tools Required
- Drywall sander
- Drywall saw
- Dust mask
- Paintbrush
- Screw gun
- Taping knife
- Utility knife

Introduction
Even the most mindful homeowner, or renter, can end up dinging a corner in their home. Vacuuming, or kids playing, and all of sudden there is chip in the the corner of the wall. Countless amounts of money go to repairs, or lost security deposits, that easily could have been averted if the person did the repair themselves.
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Small Dents and Dings
Scrape away loose debris from the hole. Cover the hole or dent with fast-drying spackle to bring the spackle level with the drywall surface and let it dry 24 hours -- or the time recommended by the manufacturer’s instructions. Sand smooth.
Popped Nail Heads
A popped nail isn't holding in the stud and backs out of the drywall, creating a popped nail head.
Small Holes
For small holes, like those created by a doorknob, a patch kit may be used.
Large Holes
For holes larger than 6 inches, you'll create a drywall patch with a different attachment method for the repair.
Corner Bead Patch
Corner bead is used where two pieces of drywall meet to form a corner. Corner bead is available in a variety of materials, including metal, paper and vinyl.
Finish the Repair
You're almost done. Here's where you make it look like nothing happened.
Repair Textured Drywall
Textured drywall is a bit more complicated, but still pretty simple to repair.
How to fix a mud drywall?
The mud should be as thick as peanut butter. Lay paper drywall tape over each repair. Dip the tape in water before you apply it to make it adhere and flatten better. Scrape the tape flat and recoat it immediately with mud. Scrape that mud flat and let the repair dry overnight.
How to remove a streak from drywall?
Cut out bubbles and separating tape with a utility knife. Cut away all the loose tape, leaving only tape that is still firmly attached to the wall . Scrape off dry, loose joint compound, or mud, with a 4-inch drywall knife. It's important to remove all of it -- even small particles can cause streaking when you recoat.
How long does it take for mud to dry on a car?
Spread another coat of mud on top of the tape and scrape it flat. Let the hot mud dry completely, which takes from 6 to 10 hours, then recoat it with two or three coats of non-setting mud, scraping each coat flat and letting it dry before applying the next. Sand and prime the final coat before you paint it.
How do I repair a drywall wall?
Wait for the first coat to dry (10 to 12 hours). Then, use a sanding block and 80-grit sandpaper to knock down the high spots ( photo 5). Switch to the eight-inch drywall knife and spread on a thinner, wider coat of joint compound with more care. Apply pressure on the outer edge of the knife as you draw the tool across the surface to form a thin, "feather edge" of compound. After the second coat dries (about two hours) lightly sand it with 120-grit sandpaper. If needed, apply a thin skim coat of compound to fill airholes, scratches, and other flaws. Wait two more hours or so, then wipe down the repair with a damp sponge and apply two coats of paint.
How do I cover a corner bead?
Thoroughly stir the material until it's smooth and lump-free. Then use the four-inch drywall knife to spread compound over both sides of the corner (photo 4). Don't fuss over this first, thick coat of compound—it will shrink, and you'll need to apply at least two more thinner coats. Just lay it on and wipe it smooth.
Which is better nailhead or screw?
Nailheads lie flatter and are easier to spackle over, though hammering them in can crack the old joint compound. Screws hold better, but their thicker heads are a little harder to conceal, especially if the existing corner bead is covered by a thin coat of joint compound.
How to repair a broken corner bead?
With the repair area outlined, use the hammer and cold chisel to chip off the old joint compound and expose the metal corner bead beneath.
How to snip through a corner bead?
To snip through the L-shaped bead, cut in from each edge, then bend the piece back and forth until it breaks off. Metal corner bead is sold in eight-foot lengths that cost about two dollars each.
How to repair a sanded area?
If you cut corners on sanding, the repair site will be noticeable, so take your time. Once the repaired area is dry, use a fine-grit (100 or 120) sandpaper. After the first round of sanding, add a second layer of mud, spreading it about 2 inches beyond the boundaries of the first layer. Once dry, re-sand.
Do you need a mask when sanding drywall?
DO use protection. The fine particulate of drywall compound could injure your lungs if inhaled. So always wear a dust mask when sanding drywall compound. Disposable gloves are also a good idea to protect your hands from the dehydrating effects of gypsum dust.
Is drywall indestructible?
Drywall is tough, but it’s not indestructible. Over time, gypsum-board walls can sustain ugly cracks or holes. Fortunately, drywall is fairly easy to repair, but there is an art to it. Here’s what to do—and what to avoid—when fixing drywall damage so it’s indiscernible to landlords, homebuyers, or visitors.
Is joint compound easier to sand?
DO keep it light. Less is generally more when it comes to joint compound. A thin coat is easier to sand, and you’ll be less likely to remove too much while sanding and expose the patch. Also, for joint compound to appear flush with the wall near the damage site, “feather” the mud as you apply it.
Is it safe to put hot wires in an outlet?
It’s safe to assume that hot wires will be present near an electrical outlet, but don’t bet your life—or life savings— that homebuilders or renovators followed all electrical and plumbing codes. Wires and pipes are often found where they don’t belong.
