I discovered moisture and mold in my daughter's closet this morning. On the other side is a utility closet that has the heater unit and some other lines that I'm guessing are part of the AC system (ac unit is on roof). Looks like water might be leaking from this PVC pipe that come down. Question, who do I call? Do I start with an AC repair company? Plumber? And do I need to call a mold company?? Help! Thanks so much knowledgable West Hillians!