| Business | Phone |
| All Around Heating & Cooling 165 Wolf Woods Ln, Sullivan 63080 | (573) 927-2200 |
| Comfort Zone Heating & Cooling 466 Grandview Dr, Sullivan 63080 | (573) 468-7898 |
| Crowder Heating & Cooling 190 Highway Ww, Sullivan 63080 | (573) 468-4190 |
| Heady Jack's Refrigeration 2376 S Service Rd E, Sullivan 63080 | (573) 927-5557 |
| Juergens Heating & Cooling 1018 Countryside Dr, Sullivan 63080 | (573) 860-4328 |
| Ware Heating & Cooling 8165 Seminary Rd, Sullivan 63080 | (573) 860-7829 |
| Randy Mac Heating Air Cond 1411 Spring Bluff Rd, Sullivan 63080 | (573) 468-4927 |
| Refrigeration Services Unltd 1 Lion Crest Ln, Sullivan 63080 | (573) 468-8487 |