How to clean mold off bathroom ceiling

If you have cleaned the mold on the bathroom ceiling before, you may agree that those dark-colored spots are tricky to deal with. Indeed, although the mold is removed, it will come back after a while. This is because the bathroom ceiling is the perfect environment for the mold to grow. As steam rises from the shower and contacts the ceiling, it will condense on the cold ceiling surface. Then, this moisture will penetrate into the plaster ceiling, creating a humid environment for the mold spores to grow. In today’s article, Sparkling and Beyond will share the proper way of cleaning mold in your bathroom and how to prevent the mold from returning to your bathroom ceiling. Let’s get started!

How to get the mold off the bathroom ceiling?

Firstly, you need to get some tools to protect your eyes, mouth and skins:

  1. Goggles
  2. Gloves
  3. Cotton face mask

The reason for the protection is that if the mold contacts your skin and eyes, it can cause irritation. Furthermore, mold can enter your body through your mouth and nose, causing some unpleasant reactions such as coughing, sneezing, postnasal drip and even asthma attacks. Therefore, you should protect yourself before doing any mold cleaning.

The tools for mold cleaning:

  1. Soft brush
  2. Plastic bucket
  3. Sponge
  4. Spray bottle
  5. Microfiber cloth
  6. Chlorine bleach
  7. Dishwashing liquid
How to get mold off the bathroom ceiling
How to get mold off the bathroom ceiling

Mold cleaning on a painted drywall ceiling

  1. Mix one-part dishwashing cleaner, 10-part bleach and 20-part water in a bucket to form a cleaning solution. If the cleaning area is smaller, you can make a smaller potion of mixture with 1 tablespoon of dishwashing cleaner, half cup of bleach and a cup of warm water. The dishwashing liquid can help the mixture attach on the ceiling longer to eliminate the mold.
  2. Put the cleaning mixture into the spray bottle and spray it over the dirty spots. You can also soak the sponge into the solution and wipe away the mold on the ceiling surface. Remember not to make the surface too damp so that the ceiling won’t be damaged. After this, wait for the ceiling to dry out.
  3. Check the ceiling again. If the mold is still there, repeat steps 1 and 2.
Mold cleaning on a painted drywall ceiling
Mold cleaning on a painted drywall ceiling

Mold cleaning on a tiled ceiling

  1. We need a bleach solution to clean the tiled ceiling. Mix the bleach and water with a portion of 1 to 16.
  2. Put the solution into a spray bottle and spray the liquid on the moldy stains. You can also wipe off the spots with a sponge soaked with the bleach solution. Make sure all the mold in the grout is fully sprayed or scrubbed and wait for no less than 15 minutes.
  3. Take the soft brush and scrub the mold away from the grout between the tiles. If there is still leftover mold, repeat steps 1 and 2 and use the brush again to remove the stubborn moldy stains.
  4. When all the moldy spots are removed, wash the ceiling with water and use the cloth to dry out.  
How to clean mold off bathroom ceiling
2/4 How to clean mold off bathroom ceiling

How to prevent the mold from returning?

Although the moldy ceiling can be deep cleaned, the mold can grow back soon if the ceiling is not properly maintained. There are two recommended methods to prevent the growth of mold. The first method is borate-based detergent. Borate not only cleans stains but also suppresses the growth of bacteria and fungi. Simply make a solution of borate detergent and apply it on the ceiling. You don’t need to rinse off the mixture so that the detergent can take effect on the ceiling surface.

Another method is maintaining the ventilation of the bathroom. Flowing air can take away excessive moisture and make the bathroom ceiling dry quicker. In this way, it will be more difficult for the mold to grow. To do this, simply remain the window and bathroom door open whenever possible. If your bathrooms don’t have windows, installing an exhaust fan is also a good option.

How to prevent the mold from returning
How to prevent the mold from returning

If the mold is behind the walls

If there is a moldy odor in the bathroom and you can see some black or white spots on your ceiling, chances are, the mold also grows at the back of your walls.

Some of this inner mold could release toxic substances and induce health issues to people such as fatigue, nausea, headaches, etc.

If you are feeling unwell and the mold may be the prime suspect, consult your doctor and call professionals to inspect your ceiling.

If the mold is behind the walls
If the mold is behind the walls


Mold is easy to grow in a humid environment such as your bathroom ceiling. If left alone, the mold may cause some health issues to you and your loved ones.

Therefore, it should be cleaned regularly. Moreover, you should make sure the bathroom is well vented so that the mold does not grow easily.

Finally, if there is a potential link of hidden mold and your health issues, discuss this with the doctor and call professionals to examine your house.

We hope this article can help you better understand how to clean the mold and maintain your bathroom ceiling.

If you want to check out more articles about house cleaning, visit or dial 415-966-1101 to get a free quote today!

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