| Business | Phone |
| Taylor Heating & Air 310 Melbourne Dr, Maryville 37804 | (865) 681-9021 |
| Roger L Newman Co Inc 1100 Montvale Rd, Maryville 37803 | (865) 982-5446 |
| Sam Suttles Heating & Cooling 513 Southwind Rd, Maryville 37803 | (865) 982-6236 |
| Householder Heating & Air 2519 Effler Rd, Maryville 37803 | (865) 977-1342 |
| Long's Heating & Air Maryville 37804 | (865) 977-7995 |
| Hayes Heating & Air Svc 613 Lansdale Dr, Maryville 37803 | (865) 977-6064 |