Came out today for duct cleaning and dryer vent cleaning estimate. Found evidence of bacterial growth on vents. Also noticed a large amount of dust buildup in the plenum and surrounding ducts. Dryer vent was also very dirty with a large amount of lint buildup near the outlet. Discussed with homeowner options for getting these issues addressed and showed her some of the areas we were seeing bacterial growth. Homeowner stated she need to pray on it and she would get back to us.