| Business | Phone |
| A-G Refrigeration Svc Fairfax 22031 | (703) 425-7574 |
| Central Services 11325 Lee Hwy 103, Fairfax 22030 | (703) 591-5400 |
| Cmac & Heating Co 12408 Stewarts Ford Ct, Fairfax 22033 | (703) 262-7751 |
| Dominion Mechanical Svc 10431 Lee Hwy, Fairfax 22030 | (703) 273-6010 |
| Air Saifco 5429 Helm Ct, Fairfax 22032 | (703) 425-0777 |
| General Heating/Ars Fairfax 22033 | (703) 631-3650 |
| Little Heating & Cooling Co 3131 Draper Dr, Fairfax 22031 | (703) 273-3799 |
| Precision Air 2800 Juniper St # 9, Fairfax 22031 | (703) 845-1111 |
| Roberts Heating & Air Cond 2807 Maple Ln, Fairfax 22031 | (703) 876-0637 |
| Virginia Air Fairfax 22030 | (703) 591-0000 |