| Business | Phone |
| Winters Heating & Air Cond Po Box 295, Lockport 60441 | (815) 485-8882 |
| Bentley Heating & Cooling 1004 E 8th St, Lockport 60441 | (815) 838-2514 |
| Horizon Heating & Cooling Inc 999 Thornton St, Lockport 60441 | (815) 838-9100 |
| Pearson Heating Inc 15341 New Ave 3, Lockport 60441 | (630) 257-6579 |