Crawlspace Mold Testing

Part of our Mold Testing services

Crawlspaces are highly susceptible to mold growth due to ground moisture, poor ventilation, and proximity to soil. Mold in your crawlspace can spread throughout your home as air naturally moves upward, affecting indoor air quality on every floor.

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Warning Signs

Musty odors throughout home
Visible mold on floor joists or subfloor
Sagging or soft floors above crawlspace
High humidity levels in home
Allergy symptoms that don't improve
Pest infestations attracted to moisture
Standing water in crawlspace

Common Causes

Ground moisture evaporating into crawlspace
Poor or absent vapor barrier
Inadequate crawlspace ventilation
Plumbing leaks under the house
Flooding or poor drainage around foundation
HVAC ductwork condensation in crawlspace

Why Immediate Action Matters

Up to 50% of indoor air comes from below your home. Crawlspace mold releases spores that travel upward through the stack effect, contaminating your entire home's air quality and potentially causing structural damage to floor joists.

Our Approach to Crawlspace Mold Testing

We inspect crawlspace conditions including floor joists, subfloor, vapor barriers, and insulation. Air sampling compares crawlspace air to interior air to determine if mold spores are entering your living space. We identify moisture sources and recommend solutions.