Our duct cleaning was done by Marcus. Marcus was friendly, efficient and arrived promptly at our scheduled time. He took the time to walk thru the house with us and explain what he was going to be doing. Once finished, he showed us pictures of the before and after affect of what he did. He recommended a couple other procedures he felt we could use and we opted to have the envirocon deodorizer applied. We were very happy with Marcus and the work he did and would gladly recommend Safety King and Marcus to anyone.