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Close-up of a surface with mold growth

How soon can mold grow after water damage?

Mold can begin to grow within 24 to 48 hours on wet materials, which is why the EPA advises drying water-damaged areas within that window.

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Answered by MyLocalWaterDamagePros · Mold risk

Mold can begin to grow within 24 to 48 hours on wet materials, which is why the EPA advises drying water-damaged areas within that window.

Key points

  • 24 to 48 hours.
  • Dry quickly.
  • Watch for musty smells.
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General information, not a substitute for an inspection. More: Water damage timeline.

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