| Business | Phone |
| A & B Plumbing Heating & Ac 3737 Wilder Rd, Bay City 48706 | (989) 686-5514 |
| Area Mechanical Svc Bay City 48708 | (989) 921-0825 |
| Cataline Heating & Air Cond 3713 Kawkawlin River Dr, Bay City 48706 | (989) 686-7158 |
| Duro Supply Co 801 S Henry St, Bay City 48706 | (989) 894-2811 |
| Ryczek Heating & Cooling 1712 Cass Avenue Rd, Bay City 48708 | (989) 895-5237 |