Jul was very professional, advising me he was on his way and arriving promptly. He exhibited excellent knowledge of the process and ways to maintain the efficiency of my HVAC system. Jul was very personable and gave me a detailed debrief including before and after pictures. sThe after pictures showed a shiny clean set of ducts. He took great care with my house and cleaned up an debris resulting from the cleaning. All in all it was great to deal with such a thorough and personable professional like Jul. I plan to use Ductworks for all my future cleaning.