3 Sneaky Signs You Could Have Mold In Your Home, From An MD

First things first: if you spot a small mold stain, treat it right away. As long as it is a hard, non-porous surface, you should be able to clean it yourself with a special mold removal cleaner like this one that mbg previously recommended by mold expert Michael Rubino. (For more information, see our complete guide to cleaning and preventing mold.)

If you only suspect mold but don't know exactly where, says Bock, you should call in professional mold inspectors for a closer look. “Normally you want a mold inspector who doesn't do the cleanup,” he notes, adding that it is unfortunately “not cheap”.

From there, the inspectors can determine whether you need to tackle anything with the mold remediation. In the meantime, you can also consider an air purifier to improve the overall air quality.