Tony and Rob clearly explained the cleaning process that Marcus had laid out for us on his initial assessment. They were very attentive to all aspects of the cleaning detail, arrived right on time, finished exactly when they estimated, cleaned up well, offered to help us move back furniture, were very respectful of my 97 year-old mother-in-laws daily schedule, and double-checked all their work. They cleaned three furnaces and all related ductwork in our three-story, 120 year-old duplex. Needless to say, they got their steps in today!