| Business | Phone |
| Maple City Heating & Plbg Inc 1032 S Main St, Adrian 49221 | (517) 265-6600 |
| Armstrong Mechanical Svc Inc Adrian 49221 | (517) 265-8821 |
| Comfort 1 Heating & Cooling 3136 N Adrian Hwy, Adrian 49221 | (517) 263-3040 |
| Smith's Heating & Air Cond 5605 Bent Oak Hwy, Adrian 49221 | (517) 263-9194 |