Hi I just moved into an older home built in 1928. When I turn on the AC, there’s musty smell coming from the vent. Even when I don’t have the AC on, the musty smell from the basement comes through the floor vents. The basement is dry and I don’t see water spots. I’m not sure what the issue is and not sure who I should reach out to find out what’s causing the musty smell.
Only thing I know is when home was inspected, the crawl space had mold, so it’s been mitigated and repaired. The Crawal space entrance is through the outside under deck and the door does not seem to close all the way.
Base on this information whom should I contact?