| Business | Phone |
| Ed's Heating & Air Cond 2280 Us Highway 45 N A, Harrisburg 62946 | (618) 253-4496 |
| Harrisburg Supply & Fireplace 1116 W Poplar St, Harrisburg 62946 | (618) 252-8223 |
| Milligan Heating & Cooling 5565 Us Highway 45 S, Harrisburg 62946 | (618) 994-2151 |