Jul called before the scheduled 8:30AM arrival time indicating he was stuck in traffic as was probably 45 minutes away. Arrived about 9:15AM. Was in uniform and used floor protecting shoe covers. Did walk through of the house to confirm scope of work. Added doing dryer vents (x 2). Confirmed with me the scope of work and cost . for 32 vents and return vents and 2 dryer vents. Set up with floor covers and got to work. Duct scraper device and high powered vacuum worked well together. Wouldn't use a service that doesn't scrape the ducts. Received before and after pictures on a disc that I put on my home computer before Jul departed which are very valuable. Work completed about 3:45PM. Excellent value.