Marcus and Tyler arrived on time. They were very polite and professional. They explained the process they would use and answered my questions. Then they put down mats to protect my floors from their equipment and began their work. My ducts had never been cleaned, and they took before and after photos to show me the amazing difference I can expect in my air quality. After cleaning the furnace ducts, they also cleaned my dryer duct. When they were done with the ducts, they sealed the portals that were made in the main ducts and cleaned up the area. I am very happy with their service.