| Business | Phone |
| Dakota Sheet Metal Inc 107 Douglas Ave, Yankton 57078 | (605) 665-4671 |
| Kaiser Heating & Cooling Inc 808 W 23rd St, Yankton 57078 | (605) 665-2895 |
| Kph Heating & Air Cond 1901 Broadway Ave, Yankton 57078 | (605) 665-3970 |
| Larry's Heating & Cooling Inc 920 Broadway Ave, Yankton 57078 | (605) 665-9461 |