I used Duct works five years ago. They sent Raul and he did a superb job, He arrived early and cleaned the ducts excellent is honest and was a hardworker. I moved into a different home and this time they sent Rodolfo. He arrived early, was extremely careful with moving around. He put wall guards up on walls and furniture so nothing got damaged by cord. He worked very hard, honest; and kept house very clean and did an excellent job cleaning the vents and furnace Duct Works has provided excellent service both times and I will definitely use them again.