Richair cleaned 8 ductless indoor air conditioner units and 2 outdoor. I have a townhouse in Manhattan with a Mitsubishi Mr. Slim outdoor/6 indoor ductless mini split system upstairs and a Friedrich outdoor/2 indoor on the garden floor. I emailed Richair after seeing them on Angie's List. They emailed me back and sent me a price for cleaning/disinfecting, etc. We have had a lot of construction in the area and I thought some of the blowers also might need cleaning. They were up front and quoted me an additional cost if that was needed (the blowers are very difficult to get to and clean, so I was not surprised). Isaac showed up on time and spent a little over 4 hours cleaning the 8 units. Mr. Slim are not the easiest units and he clearly knew what he was doing as he took them apart. He put plastic down, took pictures off the wall so as not to damage anything, took apart each unit, cleaned, disinfected, checked whatever he needed to check, and put everything back. He answered all my questions and was quiet enough that I could still get work done. I had this done the previous year by another company who were much more expensive and messier. I am glad I found Richair through Angie's List and plan on using them on an annual basis for my air-conditioner maintenance.