Keep your concrete walls looking good with simple repairs.

How to Fill a Hole in the Exterior Concrete Wall of a Home Before Painting

by Michele Norfleet

Before you take on the task of painting a concrete wall, inspect the wall for cracks and holes. Even though concrete is a hard, durable product, it is susceptible to damage. Repairing these unsightly holes is a simple process for most do-it-yourselfers.Taking the time to prepare your wall before painting will provide a uniform surface that will ensure a successful project.

1 Clean out the edges of the hole using a hammer and chisel. Make the hole wider at the base for better bonding of the patching material. For smaller holes use a screwdriver to scrape out the hole.

2 Scrape away loose concrete and debris with a wire brush. Clear dust from the hole with a damp rag. Dust will prevent the patching compound from adhering to the surrounding concrete.

3 Prepare concrete patching compound according to manufacturer’s instructions.

4 Spray the hole with clear water. Keeping the area damp prevents the patch from separating from the surrounding concrete.

5 Fill the hole with the compound using a pointed trowel. Press the mixture into the hole to remove any air bubbles.

6 Smooth the surface with the flat edge of the trowel. Feather the material away from the repair, making the surface match the surrounding area.

7 Spray the patch with water to keep it damp for at least 24 hours.

Items you will need

  • Hammer
  • Chisel
  • Screwdriver
  • Wire brush
  • Rag
  • Concrete patching compound
  • Bucket
  • Spray bottle
  • Pointed trowel

Warning

  • Wear protective eyewear when chiseling the concrete.

Photo Credits

  • Jupiterimages/Polka Dot/Getty Images