| Business | Phone |
| Classic Heating & Air Cond 223 Forest St, Marion 43302 | (740) 396-0326 |
| Cliff Roush Plumbing & Heating 871 N Main St, Marion 43302 | (740) 382-3545 |
| Coleman Heating & Cooling 2278 Marion Bucyrus Rd, Marion 43302 | (740) 382-5410 |
| Wenig's Heating & Cooling 421 W Center St, Marion 43302 | (740) 383-5012 |
| Voisard Plumbing & Heating 436 W Center St, Marion 43302 | (740) 383-3526 |
| Goon & Burns Heating & Cooling 1374 Newmans Cardington Rd W, Marion 43302 | (740) 386-6811 |
| Goon & Burns Heating & Cooling 222 S Prospect St, Marion 43302 | (740) 383-1777 |
| Rhodes Heating & Air Cond Inc 436 W Center St, Marion 43302 | (740) 382-9085 |
| Phil's Plumbing Htg & Air Cond 1211 Pole Lane Rd, Marion 43302 | (419) 562-3325 |
| Icr Mechanical Svc Llc 146 N State St, Marion 43302 | (740) 387-3837 |
| P J's & Sons Heating & Plbg 685 Delaware Ave # 210, Marion 43302 | (740) 382-6141 |