How to Resurface a Concrete Balcony

Written by nikki cash
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How to Resurface a Concrete Balcony
Concrete balconies (Immeuble résidentiel, Paris 12. image by Bruno Bernier from

Concrete balconies can typically be enhanced with a new coat of concrete and paint to repair and seal any cracks and chips that the balcony may have sustained over the years. Resurfacing a concrete balcony is similar to other concrete resurfacing jobs with the only variation being the texture. Older balconies tend to have a more textured surface whereas newer ones are smoother by design. Textures can be duplicated with the help of a bristle broom and trowel.

Skill level:

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Things you need

  • Concrete resurfacer
  • Concrete-repair caulk
  • Caulking gun
  • Putty knife
  • Concrete mix
  • Bucket
  • Trowel
  • Push broom
  • Primer
  • Paint
  • Sealer

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  1. 1

    Repair any cracks up to 1/8-inch wide by filling it with concrete resurfacer. Smooth out with a putty knife. For cracks up to 1/2-inch wide, fill in with concrete repair caulk. Squeeze the caulk with a caulking gun and smooth it out with a putty knife. Let it dry.

  2. 2

    Mix concrete according to the manufacturer's directions in a plastic bucket.

  3. 3

    Spread the concrete mix onto the concrete balcony and smooth it out with a flat steel trowel. Press down hard and evenly to make sure the concrete seeps into every crevice.

  4. 4

    Use a medium-bristle push broom to texture the wet concrete to create a slip-resistant surface.

  5. 5

    Let the concrete dry for 24 hours.

  6. 6

    Prime and paint as needed, then seal the surface with a waterborne masonry sealer.

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