Key takeaways
- Fuzzy white or dark growth on joists and subfloor
- A musty smell that gets stronger on humid days
- Damp insulation, stains and condensation
- An inspection and sometimes a lab test confirm it
Mold likes dark, damp, undisturbed places, which describes a lot of crawl spaces.
What to look for
Fuzzy white or dark patches on wood, stains on the subfloor and damp insulation are clues.
The smell
A musty odor that grows on humid days points to mold or damp soil.
The next step
An inspection confirms it, a lab test adds detail and the moisture source needs fixing before cleanup.
Related services
Questions about your own crawl space? Call or text 800-207-0499, or use the estimate form below.