We decided to get the vents cleaned in our house and Advanced air was the number one company to go to. They did not disapoint. They did a great job and answered all my questions. Several months later, we bought a new house (unplanned) and had to get the vents cleaned. The amount of junk and dirt they found in our new (old house) was terrible. The technician banged on the ducts and you could here the dirt fall. Now we know the ducts are cleaned. Good job. Great service. Thanks.