Finally met Paul for a duct cleaning service appointment (Nov 12th), and it's obvious why he is so in demand. He is truly a first-rate guy and showed up on time and before commencing any work, he took the time to walk through and ask questions for a thorough assessment. Paul helped to identify source of potential cold spots but also inspected the furnace and humidifier. After reviewing our duct panels, to his credit, he suggested that our ducts did not really need a full cleaning at this time even if it was last cleaned 5 years ago (I'm sure many other companies would probably go ahead with the contracted cleaning even if not required). The only thing required this time would be some filter replacements. After spending at least an hour with me (not to mention his travel time), in trouble shooting my system and generally providing me a lesson in HVAC 101, he declined to accept any payment for his time and services (assessment). I was thoroughly impressed with his integrity and consideration, I've already recommended him to a co-worker. Anyways, if you are still sitting on the fence on which duct cleaning company to go with, I would highly recommend that you consider Paul at the top of your list! I have ordered my replacement filters with Paul and will definitely book him for my duct cleaning service in the future. Cheers, Winston (Markham)