How to remove mold from my walls

Mold is a common problem in homes, and if you’re seeing black spots on your walls or ceiling, it could be mold. Mold tends to grow in warm, damp areas so it’s important to take care of it quickly.

It’s important to have professional mold remediation done quickly and correctly.

It’s important to have professional mold remediation done quickly and correctly. Mold can cause health problems, damage your home, and cost you a lot of money if you don’t act fast. If you are experiencing any of these signs for mold in your home:

  • Mold growing on the wall or ceiling in one or more rooms

  • An excess amount of moisture in the air (i.e., humidity)

  • A musty odor that does not go away

mold removal projects

It's crucial to contain the affected area while you're doing the cleaning.

The first step to cleaning your walls is to contain the affected area. Mold spores are everywhere, and you’ll need to take some precautions in order to protect yourself from breathing them in directly.

  • Use a HEPA filter vacuum cleaner and wear gloves and a mask when cleaning up mold.

  • Don’t use bleach or other harsh chemicals that could cause respiratory problems or irritate skin if they come into contact with it while removing the moldy material.

  • Don’t sweep or blow out the moldy area; this will release more spores into the air and make things worse!

Start by turning off your HVAC system and covering your vents.

  • Turn off your HVAC system.
  • Cover your vents.
  • Turn off the fans.
  • Close the doors to rooms that don’t have mold, and shut off lights in any areas where there’s substantial infestation.

Find a HEPA-filtered vacuum cleaner (if you already have one, keep a HEPA filter on hand)

The first thing you’ll need is a HEPA-filtered vacuum cleaner. If you already have one, keep a HEPA filter on hand. These filters are designed to catch mold spores and other allergens in the air before they can enter your lungs. Since mold spores are very small, it’s important to use them when cleaning up mold and dust from your walls. If you don’t have a vacuum with this feature, consider getting one or using something like an inexpensive hand-held vacuums instead (be sure to get one with filters that can be removed for washing).

You can also buy HEPA filters online (such as here) and attach them to your existing vacuum cleaner so long as it has attachments that allow for cleaning small surfaces like ceiling fans or closet corners quickly without having to take apart your whole setup each time.

Protect yourself by wearing glasses, gloves, a face mask and a hat.

Protect yourself by wearing glasses, gloves, a face mask and a hat. When you’re removing mold from your walls, it’s important to protect yourself from breathing in the spores that can cause health problems later on. Even if you’re not allergic to mold spores, it’s still best to take all precautions possible when removing them from your home or workplace.

If you don’t have a face mask: You can use any type of cloth or piece of clothing that fits over your nose and mouth (like an old bandana). This will help reduce the amount of dust and spores that get into your lungs as you work with wet drywall compound.

If you do have a face mask: Use this! It should come with clear glasses as well so no matter where you look—left/right/up/down—you’re fully protected against any airborne particles in the air around you.

Cleaning mold on hard surfaces requires scrubbing them with detergent and water.

The first step in removing mold from hard surfaces like your walls is to clean them with a solution of detergent and water. You can use a scrubbing brush that has stiff bristles, or you can use an ordinary household cleaning brush if you prefer. If a scrubbing brush is unavailable, you can also use an old toothbrush.

To clean the mold off your surface, make sure that you’re using enough detergent for it to be effective without causing damage to the surface itself—generally speaking, this means about 1/2 cup of detergent per gallon of water (the same ratio used for washing dishes). Mix these ingredients together until they’re thoroughly combined before applying them directly onto the affected area using either one or two methods:

  • Apply directly from a spray bottle with an attached spray nozzle (best suited for large areas); or

  • Dip a sponge into the mixture and apply via dabbing motions (best suited for smaller areas).

You may need to use other household products like vinegar, tea tree oil or borax to clean porous materials in your home.

Vinegar is a natural cleaning product that helps remove mold from porous materials.

  • Tea tree oil is a natural disinfectant that can help kill mold spores and prevent new ones from growing. It’s available at most grocery stores, drugstores and health food stores.
  • Borax is a natural cleaner made from sodium borate, which comes from borax ore mined in the Mojave Desert of California and Nevada.

Use a dehumidifier and fans to help dry out the air after you’re done cleaning.

The next step is to ensure that the moisture has been removed from your home. If you are using a dehumidifier, keep it running for 24 hours after you’ve cleaned the wet areas of mold. Also, make sure that any fans you have on in the room are pointed towards those areas as well. This will help circulate air and dry out any remaining moisture in your home’s air.

Keep windows open when possible while letting air flow through your house to dry out any lingering dampness. The last thing you want is for mold spores or bacteria to grow back because they have now become airborne again!

When cleaning up moldy areas around your house, consider using a HEPA filter vacuum cleaner with a bagless design like our Dyson V8 Animal Pro (the best Dyson). This will help prevent new spores from being released into the environment as well.

Mold can cause serious health problems, so be sure to hire an expert if you need it.

This article is meant to be a basic guide for how to remove mold from your walls. If you need help, you should hire an expert. Mold can cause serious health problems, so it’s important that you get it removed by someone who knows what they’re doing and uses the proper methods.

If you don’t hire an expert and try to remove mold on your own, there’s a chance that you might make the problem worse by spreading spores around your home or using materials that discolor the surrounding area.


If you are worried about mold in your home, it’s best to call in a professional. They can assess the situation and determine if it’s something that needs professional attention or not.

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