Is there a way to have a house inspected to detect if there is black mold present possibley in the inside walls?
Yes. If the mold assessor is like Byebye Mold, they use thermal imaging systems as well as devices which detect gases.
Because moisture intrusion and water leaks project a uniquely identifiable range of thermal capacitance, our thermal imaging can pinpoint immediate non-invasive high-resolution evidence of potential moisture and heat conditions to help locate sources of water intrusion. We also utilize a device that allows us to take a non-invasive wall cavity air sample. The use of the latest in available technologies can help identify what lies inside walls and crawlspaces.