Jul, the representative of Ductworks, did a very professional job of cleaning the ducts, which had not been cleaned since the house was built in 1990 (21 years). We have a 3-story home, 2 floors and a walkout level, with white carpets. He brought clean cloths and wore cloth boots. When he left, everything was spotless. He explained the entire process before he started and while performing the cleaning. He was professional and friendly..