Set up an appointment for air duct cleaning for Wednesday. Calin called Tuesday to confirm the appointment and provided an window when the crew would arrive Wednesday, 11a – 1p. The crew, Ryan and Chad, arrived right onetime, 11a, on Wednesday. The whole cleaning took about two hours. Ryan and Chad were friendly, efficient and thorough. I was shown pictures taken before and after the cleaning onsite – then received the photos via email from Calin later for record keeping. Could see the dust and debris before cleaning in some duct work, and see the polished clean duct work after. Ryan and Chad provided tips on keeping the duct clean when appropriate. Though it was a cold day and the back door needed to be kept open for vacuum tube to enter the basement, Ryan and Chad monitor the thermometer and make sure the temperature didn’t fall too low. For the price and the work performed. It is certainly worth it.