| Business | Phone |
| Comfort Engineers Hillsborough 27278 | (919) 732-8015 |
| Hay's Heating & Air Cond 3932 Bivins Rd, Hillsborough 27278 | (919) 471-8020 |
| Riley's Heating & Ac Svc Inc Hillsborough 27278 | (919) 732-9209 |
| Riley's Heating & Air Cond Inc 3729 Mallory Ct, Hillsborough 27278 | (919) 383-2373 |
| Yellow Dot Heating & Air Cond 2205 Leah Dr, Hillsborough 27278 | (919) 644-8686 |
| Warren-Hay Mechanical Contrs 214 Millstone Dr, Hillsborough 27278 | (919) 732-4362 |