How Do I Get Rid of Mold in Drywall?

Need Help From Water Damage Professionals

The mold is made up of fungi that multiply by spores and appear in areas with high humidity, because moisture favors both the appearance of the mold and its development. The most common types of indoor mold are Penicillium, Cladosporium, Alternaria and Aspergillus. Mold can appear both inside and outside a building.

Mold spores enter the house by air, but also through heating and ventilation systems. The areas that can be most affected by mold are the kitchen, the bathroom and the balcony, but mold can develop in other rooms too, if you have problems with water leaks or air humidity. Mold may appear on wooden surfaces, but it can also break down paints or adhesives and that is why you can often find it in drywalls.


The main factors that favor the appearance and development of the mold are moisture, heat and lack of adequate insulation.


A warm and humid environment – the humidity and the heat inside the building favor the appearance of the mold, especially in the cold season, due to the large temperature differences.

Condensation – incorrect insulation of the walls will block the transfer of moisture from the indoors to the outdoors. This is the cause of condensation.

Water infiltration – if the waterproofing systems are made of poor quality materials, water infiltration can occur in the interior walls of the house. It is recommended that waterproofing operations be performed by a water damage Phoenix professional, to avoid problems that lead to the apparition of mold.


There is no environment completely free of mold, although mold spores are not visible. However, when they come in contact with water and moisture, the mold spores will develop into those ugly-looking stains and dark colored spots on the walls.

The specific smell of the mold, a bit similar to that of wet soil, may indicate its presence, especially if it appears in less visible areas, such as behind furniture or under the parquet.

Effective methods for mold removal

For mold already formed on the walls you have at hand several practical solutions, which will help you to successfully eliminate these unsightly and harmful stains:

  • Commercial or homemade solutions that kill mold – In stores, you can find a variety of solutions that help you to remove the mold from the walls, but you can also choose to prepare your own mold-repellent in the house, with the following ingredients: a glass of water, a glass of vinegar, the juice of one lemon, two tablespoons of baking soda and one tablespoon of peroxide hydrogen. Mix the ingredients in a bottle and spray the solution on the areas covered with mold. Allow it to react a few hours before rinsing. When removing the mold like this, remember to protect yourself and avoid inhaling the spores. It is recommended to use a face mask and plastic gloves.
  • Dehumidifiers – Mold loves moisture, and an environment where air humidity exceeds 80% significantly increases its chances of developing. The most useful solution is to use a dehumidifier. In addition, if you have faced mold problem in the past, using a dehumidifier is the ideal remedy against its recurrence.


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