Common Mold Types Found in Orange County Homes

During our inspections throughout Orange County, we encounter several common mold species. Understanding these can help you better understand your test results.

Cladosporium

One of the most common outdoor and indoor molds. It appears olive-green to brown or black and is often found on fabrics, wood surfaces, and HVAC systems.

Aspergillus

A large genus with many species, commonly found in dust, building materials, and food. Some species can produce mycotoxins that may cause health issues.

Penicillium

Often found in water-damaged buildings, this blue or green mold spreads quickly and can cause allergic reactions in sensitive individuals.

Stachybotrys (Black Mold)

Often called "toxic black mold," this species requires very wet conditions to grow. It's commonly found on cellulose-rich materials like drywall and wood that have been wet for extended periods.

Understanding Your Results

Finding mold in your home doesn't always mean there's a problem. Context matters—including the types present, concentration levels, and comparison to outdoor samples. Our detailed reports help you understand what your results mean for your specific situation.