How to Repair Drywall Cracks on Textured Walls

Scrape along the entire length of the crack with a stiff putty knife. Remove paint, texture and drywall mud until you reach the drywall paper. Scrape an area approximately 1 1/2 inches wide on both sides of the crack to create a channel approximately 3 inches wide along the crack's entire length. Clean dust and debris from the scraped areas with a soft-bristled brush.

Load a tube of paintable caulk into a caulking gun, cut the tube's tip and puncture the tube's seal. Apply a bead of caulk into the crack along its entire length. Smooth the bead of caulk with a stiff putty knife. Allow the caulk to cure according to the manufacturer's recommendations.

Apply a layer of latex primer over the crack, the cleared area and the seams between the cleared area and intact wall texture. Use a paintbrush or roller to apply primer to the repair area. Allow the primer to dry.

Open a can of spray-on drywall texture, attach the can's hose, and puncture the can's seal. Spray the texture along the cleared area, lightly blending the spray-on texture with the intact wall texture. Allow the texture to dry.

Apply a coat of primer to the new drywall texture with a brush or roller. Allow the primer to dry. Apply a coat of matched paint to the repair area, blending with the intact wall surfaces. Allow the paint to dry prior to applying additional coats.