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How to Get Rid of Mold on Walls?

Case Study: Mold on Bathroom Walls

A customer called, worrying about a musty odor in the bathroom.  Her main concern was the safety of the children, especially the one with asthma. She mentioned seeing small amounts of mold on the bathroom walls.  And she wanted us to come out and take a look.  Before we wanted to schedule, we wanted to ask some questions that may help us understand the issue a little more.

Phone Consultation

  • Is there adequate ventilation in the bathroom?
  • Does the bathroom exhaust work?  How often are the ducts cleaned?
  • Do the outside corners of the tub or shower have water spots, water damage or mold?
  • Is the sheet rock or wallpaper bubbling or spongy?
  • Is there mold on the ceiling of the shower?

After she answered a few more questions, we decided that we could be of some help.  We scheduled an appointment for a Mold Inspection/Testing for the next day. During the mold inspection, we noticed the walls and ceiling of the shower were soft with cracked and loose tiles. With the homeowners permissions we peeled back some of the wallpaper on the wall and uncovered Mold growing.

Cleaning Mold with Bleach

Then the homeowner mentioned that bleach was used to spray the mold occasionally.  Spraying bleach for this instance only killed the mold on the surface.

Mold Inspection - checking humidity & wall cavity

Using a hygrometer, the readings on one wall detected high humidity levels. A very positive indication of mold.  Again with the owners permissions we were able to look through a small hole in the section of the soft sheet rock and can see mold in the wall cavity.  In this case, we concluded that water was leaking from the shower into the wall cavity causing the Mold growth.

Mold Testing

During the Mold Testing procedure, we took air samples from the bathroom, an adjacent room and living room.  When the results arrived the Mold Lab determined that elevated Mold levels were found in both the bathroom and adjacent room.  This room shared a wall with the bathroom.  The living area tested did not have elevated levels of Mold, which is a good sign that Mold was confined to the two rooms.

Mold Testing Results

Based on the Mold Inspection and the Results from the Mold Testing, we were able to provide the Homeowner with the guidelines and estimate for Mold Remediation.

Final Thoughts

So to answer the question of How do I get rid of black mold on my walls?  It really depends on the situation. So do not hesitate to give us a call. If you have a similar issue or know someone that does, please give us a call 918-770-4888.