| Business | Phone |
| Action Air Inc 1289 Rand Rd, Des Plaines 60016 | (847) 296-7555 |
| Air Zone Heating 7122 Lyndon Ave, Des Plaines 60018 | (847) 296-3444 |
| Alajoki Heating Svc 1501 Center St, Des Plaines 60018 | (847) 824-1905 |
| Bott Heating Co 1096 Lee St, Des Plaines 60016 | (847) 298-4610 |
| Brc Heating Cooling 1815 E Oakton St, Des Plaines 60018 | (847) 827-6991 |
| Bud Borkenhagen Refrig Svc 1842 Miner St B, Des Plaines 60016 | (847) 824-4251 |
| Castle Heating & Air Cond 970 Rose Ave, Des Plaines 60016 | (847) 824-4444 |