| Business | Phone |
| 72 Degrees Ac & Heating 209 Beidler St, Collinsville 62234 | (618) 344-3850 |
| A C Products Collinsville 62234 | (618) 667-1220 |
| A-1 Budget Heating & Cooling Collinsville 62234 | (618) 345-6178 |
| Acutemp Heating & Air Cond Collinsville 62234 | (618) 344-3850 |
| Air Doctor 208 Camelot Dr, Collinsville 62234 | (618) 343-1002 |
| Barney's Appliance Repairs Collinsville 62234 | (618) 406-2270 |
| Bel-O Sales & Svc Inc 507 W Clay St, Collinsville 62234 | (618) 344-3434 |
| Spengler Co Inc 1402 Frontage Rd, Collinsville 62234 | (618) 346-6600 |
| J D Refrigeration 6849 Fedder Ln, Collinsville 62234 | (618) 345-0041 |
| Das Heating & Cooling 211 S Seminary St, Collinsville 62234 | (618) 344-1500 |
| Prost Heating & Cooling 6964 Lebanon Rd, Collinsville 62234 | (618) 344-3749 |
| Mt Everest Air 208 W Main St, Collinsville 62234 | (618) 344-1118 |