| Business | Phone |
| Warrenton Municipal Bldg 18 Court St, Warrenton 20186 | (540) 347-1101 |
| Warrenton Town Inspections 360 Falmouth St, Warrenton 20186 | (540) 347-7219 |
| Warrenton Town Personnel 18 Court St, Warrenton 20186 | (540) 347-1102 |
| Warrenton Waste Treatment Plnt 721 Frost Ave, Warrenton 20186 | (540) 347-1104 |