Dave responded to my online enquiry within a day and was extremely accommodating to schedule a duct cleaning within a few days. He and his assistant were very polite (took off their shoes when they entered the house!), very friendly and extremely thorough in their work. Since we just completed some renovations, we wanted to ensure our ductwork was cleaned and Dave didn't disappoint. I would highly recommend Dave and will definitely use him again. Another gold Homestars find!