Came out to call. Customer said system wasn’t cooling down the home well enough, and the temp raises in the house during the heat of the day. I tested system to verify any issues with the refrigerant pressures. System had a 7 degree superheat. I then proceeded to check inside the home and found the air temp from duct work in the living area is 16 degrees hotter than any other duct work in the home. I checked upstairs and found the ductwork running to the living room coming apart. The duct work overall is in bad shape and should be replaced. I gave customer options on replacing just ductwork or ductwork with AC and Coil, seeing that the coil is going to have to be taken out to get the new plenum in. Customer will discuss options with husband and let me know.