When Is Mold Too Much to Handle Yourself?

A small patch of surface mold from a clearly identified and corrected moisture problem is different from widespread mold after major water damage. The size and circumstances...

By Everyday Home Advice Editorial Team

Mold growth spreading across an interior wall surface

A small patch of surface mold from a clearly identified and corrected moisture problem is different from widespread mold after major water damage. The size and circumstances matter.

Start with the moisture source

Before thinking about cleaning, answer one question: why is this area wet? If you can't answer it, the problem isn't ready to be solved.

Consider how much material is affected

A small isolated area is one thing. Multiple walls, large ceiling areas, several rooms, HVAC contamination, or hidden wall cavities are another.

What kind of water was involved?

Mold after clean-water leakage is different from materials affected by sewage or contaminated flooding. Contaminated water calls for greater precautions.

Is the mold inside porous material?

Mold growing on or inside drywall, insulation, carpet padding, ceiling tile, or other absorbent materials is harder to clean effectively than a small amount on a hard surface.

Are there health concerns?

People with respiratory conditions, allergies, compromised immune systems, or other health concerns may need to take additional precautions. Health questions belong with an appropriate medical professional.

When does professional help make sense?

Consider professional remediation when:

  • The affected area is extensive.
  • Mold is hidden.
  • Water was contaminated.
  • HVAC systems may be involved.
  • Structural materials are significantly affected.
  • You can't correct the moisture source.

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