| Business | Phone |
| A-1 Certified Svc Powell 37849 | (865) 947-4615 |
| A-1 Finchum Refirgeration Htg 2502 W Emory Rd, Powell 37849 | (865) 637-4259 |
| Aaa Heat & Ac Pros Inc 7133 Clinton Hwy, Powell 37849 | (865) 670-0032 |
| Advanced Mechanical Svc 3404 Miller Rd, Powell 37849 | (865) 925-1030 |
| Brothers Maintenance 128 Gadsontown Ln, Powell 37849 | (865) 945-7059 |
| Carroll Heating & Air 2903 W Beaver Creek Dr, Powell 37849 | (865) 947-3535 |
| Dewey Brown Heating & Air 8206 Bells Campground Rd, Powell 37849 | (865) 938-5589 |
| Perfection Services 6818 Barger Pond Way, Powell 37849 | (865) 938-4822 |
| Phillips Heating & Air 7641 Clinton Hwy, Powell 37849 | (865) 689-3052 |
| Powell Brothers Heating 2624 Clinton Hwy, Powell 37849 | (865) 483-9223 |
| Lawson Quality Heating & Air 7110 Weaver Rd, Powell 37849 | (865) 454-1189 |