Signs of Mold in Your Home: What It Looks Like, Smells Like, and How It Can Affect You
Jul 9, 2026

Mold affects much more than just the look of a home. It can be a sign that there is something much bigger going on—such as a leak or excess moisture—and it is not always easy to spot. While some mold is visible right away, others can grow behind walls, in the attic or inner roof, under floors, etcetera.
One of the biggest signs of mold is discoloration. This can vary in color, from black to green to gray, white, and even orange. You might see these patches on walls, ceilings, windows, floors, and really anywhere else in the house. These moldy spots can look powdery, fuzzy, slimy, or just like stains, and they often continue to spread over time.
Scent is another indicator. The smell of mold varies and might be musty, earthy, or a general damp scent. If these smells continue, especially after airing out a room, this is a pretty big sign that there is mold present and deserves more attention.
Another huge sign of mold is how you are feeling. If you are continuously sneezing, coughing, feeling short of breath, experiencing nasal congestion, itchy or watery eyes, headaches, skin irritation, or worsening asthma symptoms, there is a good possibility of mold being present. This is especially true if you have been to the doctor and cannot pinpoint where these symptoms are coming from, or if they worsen when at home.
Mold requires moisture to grow, so it is important to identify and fix the source of the problem. Roof leaks, damaged siding, clogged gutters, poor ventilation, and aging windows are all problems that can cause trapped moisture, leading to mold.
If you suspect you have mold present in your home, it is essential to call a professional for an inspection. CR3 American Exteriors offers free inspection, so call us today!


