1. Guardian Duct Cleaning 109 E Jackson Ave, Knoxville, TN 37915 Coordinate: 35.97076,-83.91817 Phone: (865) 643-8559
2. Duct Doctor USA 6752 Bonneville Dr, Knoxville, TN 37931 Coordinate: 35.99297,-84.09172 Phone: (865) 938-7776