I was not happy with the service provided by this company. They use what looked to be a leaf blower and just shoved it in the vent. It left a horrible gasoline smell throughout the whole house. I was not told that this smell would linger and I had to leave the house for the rest of the day. I did not want the kids smelling that all day. I had used a different company in the past that put a router that spun through the ducts. I would never use this compay or any other company that uses a leaf blower again!