This is the same review I posted in HomeAdvisor.com (as that's how I first heard of them - highly ranked there too)
Frank was fantastic describing our options and keeping us updated on scheduling. When two workers came to do the work, Kevin was very thorough and explained to my wife exactly what was going to happen. While I was at work, she felt comfortable as the Kevin and their crew. This was great, as she had prior experience with another duct cleaning company that wasn't positive. We also did the Dryer clean out option - as it was great (and a little scary) how much lint they removed. We are so glad we chose AZ Air Duct before moving into our new, now clean home!