Water damage and mold are connected by one basic condition: a material that stays damp can support growth. The source might be a leak, flooding, condensation, or high humidity. The response should address both the moisture and the affected material.
After the water is stopped
Check what was wet, including the floor or wall layers that may not be visible. Some materials can be dried and cleaned; others may need removal, especially after contaminated water. A musty smell or visible growth is a reason to investigate rather than simply repaint. The EPA guide explains moisture control as the foundation of mold prevention.
Avoid two common shortcuts
Spraying a surface does not repair a leak. Likewise, installing new drywall before the assembly is appropriately dry can hide an unresolved condition. Ask what evidence supports the drying decision and how the source was corrected. See water damage restoration and mold remediation for the two connected service paths.
Frequently Asked Questions
Should every wet wall be removed?
No. The answer depends on the water source, material, extent, and ability to dry and verify it. A site-specific assessment is needed.