Fairfax County Backflow Testing & Certification | Advanced Irrigation & Lighting
Fairfax County requires annual backflow testing for irrigation systems. We provide certified testing, repair, and compliance services for residential and commercial properties in Northern Virginia.
Fairfax County requires all testable irrigation backflow prevention assemblies to be inspected and tested annually by a certified technician to protect the public water supply from contamination. Advanced Irrigation & Lighting provides professional backflow testing, repair, and certification services throughout Fairfax County, Virginia, ensuring full compliance with county and state requirements for residential and commercial irrigation systems. Our licensed team performs accurate testing, completes all required documentation, and submits reports in accordance with Fairfax County regulations to keep your irrigation system safe, compliant, and operating efficiently year-round.
Why Fairfax County Requires Backflow Testing
Fairfax County mandates annual backflow testing for all irrigation systems to protect the public water supply from contamination caused by reverse water flow. Any irrigation system connected to a potable water source must have a working and properly certified backflow prevention device.
Homeowners and property managers are responsible for ensuring this testing is completed each year by a certified technician.
Our Backflow Testing Services
We provide complete backflow solutions, including:
Service Areas
We proudly serve all of Fairfax County, including:
- Fairfax City
- Fairfax Station
- Reston
- Vienna
- McLean
- Herndon
- Centreville





