I have been a longtime customer of Advanced and get my ducts cleaned on a yearly basis. The amount of debris removed amazes me each time. Equally important is having my dryer vent cleared - which is always backed up with a good amount of lint. It gives me peace of mind with regards to fire safety, especially with my kids in the house. The guys from Advanced are always clean and come prepared to get the job done on time and when they say they will. They have always left my house as clean as they found it. I always recommend them to my friends and family.