| Business | Phone |
| Air Plus Inc Mt Vernon 43050 | (740) 392-7587 |
| Aok 8105 New Delaware Rd, Mt Vernon 43050 | (740) 392-3000 |
| Bell Cooling & Heating 310 Newark Rd, Mt Vernon 43050 | (740) 397-8585 |
| Champion Air 498 Harcourt Rd, Mt Vernon 43050 | (740) 393-0789 |
| Coe's Heating & Cooling 502 Coshocton Ave, Mt Vernon 43050 | (740) 397-9855 |
| Complete Comfort Systems Ltd 11301 Upper Gilchrist Rd, Mt Vernon 43050 | (740) 392-2505 |
| Dennis Long Heating & Ac 3460 Weaver Rd, Mt Vernon 43050 | (740) 892-3379 |
| J & B Heating & Cooling 20 Mansfield Ave, Mt Vernon 43050 | (740) 392-0645 |
| Johney Payne Heating & Ac 14477 Old Mansfield Rd, Mt Vernon 43050 | (740) 397-0329 |