How to remove mold from bathroom walls & ceilings

Written by constance barker
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How to remove mold from bathroom walls & ceilings
Remove mould from bathrooms with chlorine bleach. (bathroom image by Mikhail Olykainen from

Mold thrives in moist environments, making the bathroom walls and ceiling a particularly favourable environment for mould to grow in. Mold is unhealthful and left unchecked can spread throughout the home, threatening your family's well-being. Remove mould from bathroom walls and ceilings as soon as you discover it to keep it from seeping behind walls and creating not only an even worse health hazard, but a far more difficult and costly removal problem.

Skill level:

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Things you need

  • 1/4 cup trisodium phosphate
  • Bucket
  • Sponges
  • Chlorine bleach
  • Rags
  • Towels
  • Breathing mask

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  1. 1

    Mix 1/4 cup of trisodium phosphate with a bucket of warm water. Place a large sponge into the mixture and squeeze out the excess water. Wash the bathroom walls and ceiling with the cleaning solution.

  2. 2

    Pour undiluted chlorine bleach on a rag and wipe over the ceiling and walls. Allow the bleach to work on the mould for one to two hours.

  3. 3

    Rinse the bleach from the walls and ceiling with a wet sponge. Be sure to remove all bleach from the bathroom surfaces.

  4. 4

    Dry the bathroom walls and ceiling with towels, removing all moisture.

Tips and warnings

  • Open windows and turn on a ventilation fan when working in the bathroom.
  • Use disposable rubber gloves when working with mould and throw away after using.
  • Use a step stool to reach the top of the walls and the ceiling, and avoid standing on the bathroom vanity.
  • Discard any sponges or rags used to remove the mould from the bathroom.
  • Wear a breathing mask when working with indiluted chlorine bleach to protect yourself from harmful vapours.

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