Mold Under the Hardwood Floors

Mold Under Hardwood Floors

Homeowners often encounter mold under hardwood floors, which can be a source of worry. This problem can arise from different factors, including excessive moisture, water leaks, or insufficient ventilation. When moisture gets trapped beneath the hardwood, it provides an ideal environment for mold spores to multiply and disperse. 


There are multiple indications that suggest the existence of mold beneath hardwood floors. These signs comprise of a damp, unpleasant smell, observable mold formation, changes in color or discolored marks on the floorboards, and an upsurge in allergies or respiratory issues among individuals in the household. 

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Removing the mold

If you have a suspicion of mold presence beneath your hardwood floors, it is crucial to promptly take necessary measures in order to resolve the problem and stop its further spread. Presented below are the necessary steps to effectively remove the mold:

  1. Find out the source of the moisture: It is crucial to identify and resolve the root cause of the mold growth prior to initiating the cleaning procedure. This could involve repairing any water leaks, enhancing air flow, or reducing the humidity levels in the affected area. 
  2. It is crucial to put on protective equipment, such as gloves, goggles, and a mask, before beginning the cleaning procedure due to the potential health problems that can arise from exposure to mold. 
  3. To eliminate mold completely, it may be necessary to take out and replace the infected floorboards in severe cases where the mold has deeply penetrated the hardwood. 
  4. To get rid of mold, you can try using a mixture of water and detergent for smaller patches. Scrub the affected area well and make sure all the visible mold is gone. If the mold problem is bigger, it might be better to seek help from a professional mold remediation service. 
  5. Dry the area: After cleaning, it is essential to ensure the affected area is thoroughly dried to prevent any residual moisture from causing further mold growth. This can be achieved by using dehumidifiers, fans, or opening windows to improve airflow.
  6. To avoid the recurrence of mold, it is crucial to regulate indoor humidity levels, promptly handle any water leaks or spills, and ensure sufficient ventilation in areas that are prone to accumulating moisture. 


It is crucial to quickly address the growth of mold under hardwood floors to protect the strength of the flooring and the well-being of those living in the space. In cases where there is uncertainty or a significant amount of mold, it is recommended to hire professionals to ensure proper and successful removal of the mold. 


I enjoy acquiring knowledge and sharing it. I am a long-time health advisor and blogger for over 12 years. Understanding the dangers of black mold to people, I felt it necessary to share with readers the basics of fighting and preventing black mold in homes and other living spaces.

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