I decided to try Sterling Cleaning and Restoration after seeing a great deal on a group buy site and reading some reviews. Ryan (owner) came as scheduled and on time to clean the ducts in my 2 year old house. He was very easy to deal with and answered all my questions. He did a great job and I was able to see the ducts flex and dust come out (where there was not a tight seal in the ducts) in my unfinished basement. Seeing this reassured me that they were getting clean. He also pointed out an area where the return air was not closed off properly by the builders and took the time to fix it for me. He also cleaned the return air ducts. I would definitely use them again.