Things You Will Need
Fortunately, you can tend to this problem on your own without the help of a professional, which saves you money.
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Use a putty knife or scraper to peel off any loose paint or dry wall. If necessary, fill in large holes with joint compound and wait for it dry.
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Paint the affected area with a quality interior primer. Doing so seals off the peeling drywall and also creates a fresh surface for you to apply new drywall.
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Wait for the primer to dry completely. Waiting time varies depending on the type of primer you choose and the amount of air that circulates in the room. Place fans in the room, open the windows and wait at least 24 hours to be safe.
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Apply a thin coat of drywall mud over the entire primed area. Wait for it to become somewhat dry and then repaint another layer of the mud. You can create texturize (if necessary) with a variety of tools or techniques, including paintbrush bristles or sponges.
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Wait until the wall dries completely. Then, sand it down, reprime and paint it to match the rest of your wall.