| Business | Phone |
| T L Myers Heating & Air Cond 952 E Walnut St, Frankfort 46041 | (765) 659-3171 |
| Four-T's Heating & Air Cond 80 N Green St, Frankfort 46041 | (765) 249-2778 |
| Gem City Heat-Cool 728 E County Road 100 N, Frankfort 46041 | (765) 654-4083 |
| J R Neidlinger Heating & Clng 455 S Perry St, Frankfort 46041 | (765) 659-4154 |
| Mudd's Heating & Cooling 1101 Blinn Ave, Frankfort 46041 | (765) 659-4488 |