Black Mold Symptoms & Dangers
What black mold actually does to your health, how to spot it, and when it's time to call a professional.
Symptoms of black mold exposure
- Nasal congestion, sneezing, runny nose
- Coughing and throat irritation
- Itchy or watery eyes
- Skin irritation or rashes
- Headaches and fatigue
- Aggravated asthma or wheezing
A telltale sign it's your home: symptoms ease when you leave and return when you're back.
Is it really "toxic black mold"?
Many dark molds are harmless. The term usually refers to Stachybotrys chartarum, which grows on chronically damp materials like drywall and needs lab testing to confirm. Regardless of species, mold means a moisture problem that needs fixing.
When to call a professional
Call a pro if the mold covers more than ~10 sq ft, keeps coming back, is tied to water damage, or anyone in the home has respiratory issues. See our remediation process.
Questions, Answered
Black mold FAQ
Black mold can cause coughing, congestion, eye and throat irritation, headaches, and worsened asthma or allergies. Risk is higher for infants, older adults, and people with respiratory conditions.
Common symptoms include nasal congestion, sneezing, coughing, itchy or watery eyes, skin irritation, throat irritation, and aggravated asthma. Symptoms often ease when you leave the building.
No. Many harmless molds appear dark. "Toxic black mold" usually refers to Stachybotrys chartarum, which needs lab testing to confirm. Either way, mold over ~10 sq ft should be removed professionally.
Small surface spots can sometimes be cleaned, but anything over ~10 sq ft, tied to water damage, or in HVAC should be handled professionally to avoid spreading spores.
Got mold? Let's get it gone.
Free same-day inspection, certified remediation, and we handle the insurance paperwork. Talk to a Denver mold specialist now.