Courtesy call: homeowner wanted ductwork looked at for the upstairs system. The homeowner was told by duct cleaning company that he had biological growth in the ductwork and in the upstairs system. I found that the upstairs system did have biological growth in the evaporator coil and duct work. I gave the homeowner UV light options and setup a time with an install supervisor to get an estimate for new duct work upstairs. The upstairs system also needs updated flood protection and the drain line needs to be redone not the attic; due to not having enough slope. The basement system and mainfloor system needs updated condensation pump and flood protection. The homeowner declined the condensation pump and flood protection at the time of service. I remounted the upstairs TXV bulb; the homeowner was advised to call us back out next spring so we can run the AC system and check the refrigerant pressures (very cold outside).