| Business | Phone |
| Aldag Honold Manitowoc 54220 | (920) 683-3069 |
| Hilary's 24 Hour Oil Burner 1429 Lee Cir, Manitowoc 54220 | (920) 682-3635 |
| Kretsch Heating & Air Cond Inc 1141 S 41st St, Manitowoc 54220 | (920) 682-6054 |
| Lakeshore Heating 249 E State Highway 310, Manitowoc 54220 | (920) 683-3967 |
| Manitowoc Heating & Refrig 109 N 10th St, Manitowoc 54220 | (920) 686-7378 |
| Smokey Barbier Heating Inc 1516 Memorial Dr, Manitowoc 54220 | (920) 682-2073 |