We had our air ducts cleaned out by A Advantage relatively recently. They did a spectacular job. They were quick, very clean and very thorough. They told us that the air filter we were using at the air return was not needed so we didn't need to replace it. They went out of their way to save us a few dollars and still give us fantastic service. They called a few days later to be sure that we were satisfied with the work done. They really care about customer service.