| Business | Phone |
| Stevens Refrigeration & Ac 5015 N Il 130, Olney 62450 | (618) 395-3788 |
| Read's Refrigeration Heating 911 W Catherine St, Olney 62450 | (618) 393-4102 |
| Heindselman Heating & Air Cond 3859 E Antioch Ln, Olney 62450 | (618) 395-2934 |
| Hornback's Heating & Air Cond 829 E Main St, Olney 62450 | (618) 393-7603 |