| Business | Phone |
| Action Heating & Elec Corp 6939 Calumet Ave, Hammond 46324 | (219) 769-1440 |
| Action Heating & Electric 7316 Knickerbocker Pkwy, Hammond 46323 | (219) 844-1505 |
| Archer Home Inspections 213 S Hunter, Hammond 46320 | (219) 852-4047 |
| Budd The Furnace Man & Sons 586 Fayette St, Hammond 46320 | (219) 931-1073 |
| Comfort One Inc Heating & Air Po Box 4481, Hammond 46324 | (219) 931-1077 |
| Larry's Home Heating & Cooling 812 167th St, Hammond 46324 | (219) 845-5873 |
| Service Express 641 E State St, Hammond 46320 | (219) 933-0242 |
| Wholesale Heating & Cooling 7104 Oakdale Ave, Hammond 46324 | (219) 838-4222 |