Falls Church homeowners and business owners are increasingly receiving annual compliance notices from their water authority requiring backflow preventer testing. If you have received one of these notices, or if you recently had an irrigation system, fire suppression line, or other cross-connection installed on your property, this guide explains what backflow services involve in Falls Church, what the annual testing requirement means for your property, and how to find a certified local provider who handles everything from scheduling to county filing.
Available Backflow Services in Falls Church, VA
Backflow Services Done Right provides the full range of backflow prevention services to residential and commercial properties throughout Falls Church, including the City of Falls Church and Falls Church properties within Fairfax County.
Backflow Testing
Annual backflow testing is required by Virginia state code for all properties with a registered backflow prevention assembly. A Virginia DPOR-certified technician inspects and pressure-tests your assembly, records all readings on the official test report form, and submits the completed report to the appropriate water authority before your compliance deadline. You receive a signed copy of the results the same day.
Backflow Repair
If your assembly fails its annual test, repairs must be completed and a passing re-test report submitted before your property is considered compliant. Common repair needs include worn check valve seats, degraded internal seals, failed relief valves, and corroded shutoff valves. Our service vehicles carry parts for the most commonly installed assemblies in Falls Church, which means repairs and re-testing are often completed in a single visit.
Backflow Installation
New construction, irrigation system installations, and property improvements that create a cross-connection to the public water supply require a permitted backflow prevention assembly installation. We handle permit applications, device selection, installation, and the initial test report submission required at the time of installation.
View our full range of backflow services here.
Who Needs Backflow Testing in Falls Church?
Not every property in Falls Church has a testable backflow prevention assembly, but many more do than property owners realize. You are required to have annual testing performed if your Falls Church property has any of the following:
- An in-ground irrigation or lawn sprinkler system connected to the public water supply
- A fire suppression or fire sprinkler system
- A swimming pool or water feature with an automatic fill line
- A boiler or hydronic heating system connected to the water line
- A commercial food service connection (restaurants, cafes, delis, commercial kitchens)
- A medical, dental, or healthcare facility water connection
- Any other commercial process connection involving chemicals or substances that could contaminate potable water
If you have received a compliance notice from Fairfax Water, the City of Falls Church Department of Public Works, or another water authority, a backflow prevention assembly is on record for your property and annual testing is legally required.
Falls Church Backflow Compliance: What You Need to Know
Falls Church sits across two separate jurisdictions: the independent City of Falls Church and portions of Fairfax County. Your backflow testing requirements and the water authority responsible for your compliance notices depend on which jurisdiction your property falls under.
City of Falls Church properties receive water service from the City of Falls Church, which administers its own cross-connection control requirements in alignment with Virginia state code. Test reports for City of Falls Church properties must be submitted to the city’s water department.
Falls Church properties in Fairfax County are subject to Fairfax County’s Cross-Connection Control and Backflow Prevention Program, administered by Fairfax County Land Development Services and Fairfax Water. In Fairfax County, each property is assigned a specific annual testing month based on the county’s tax map grid, and test reports must be submitted to the county before the end of that assigned month. Only Fairfax County Authorized Vendors holding a Virginia DPOR Tradesman Certification are permitted to perform and certify backflow tests for Fairfax County compliance purposes.
Backflow Services Done Right is a Fairfax County authorized backflow vendor and is also certified to serve City of Falls Church properties. Regardless of which jurisdiction your Falls Church address falls under, we handle the correct filing process on your behalf.
Learn more about our Falls Church backflow services here.
What to Expect During a Backflow Test at Your Falls Church Property
When our certified technician arrives at your Falls Church property, here is what the service visit involves:
The technician begins with a visual inspection of the assembly, checking for corrosion, physical damage, improper installation, or any visible issues. They attach calibrated test gauges to the assembly’s test cocks and temporarily shut off water service while conducting the pressure differential test.
Each internal component, including the check valves, relief valve, and shutoff valves, is tested against the performance standards required by the applicable ASSE testing procedure. All readings are recorded on the official test report form. After testing, water service is restored and the technician communicates the result directly to you.
The full process takes approximately 45 to 90 minutes for a standard residential assembly. Water service is typically interrupted for 15 to 30 minutes during the pressure testing portion.
If your device passes, the completed report is filed with the appropriate authority and you are compliant for the current year. If it fails, our technician will explain what failed, provide a repair estimate, and in most cases complete the repair and re-test during the same visit.
Backflow Testing Costs in Falls Church
For most residential properties in Falls Church, annual backflow testing costs between $85 and $155, including test report filing. The exact price depends on your assembly type, the number of devices on your property, and which jurisdiction your address falls under.
Commercial properties with a single assembly typically range from $130 to $275. Properties with multiple assemblies, such as separate devices for irrigation, fire suppression, and domestic water, are often discounted on a per-device basis when tested in the same visit.
When comparing quotes, always confirm whether the test report filing fee is included in the price you are given. Some companies quote a low base rate and add the filing fee separately at billing.
Frequently Asked Questions
Is backflow testing required in Falls Church, VA?
Yes. Virginia state code requires annual testing of all backflow prevention assemblies by a DPOR-certified tester. Properties in the City of Falls Church and Falls Church properties in Fairfax County are both subject to this requirement. Test results must be submitted to the appropriate water authority.
How do I know which jurisdiction my Falls Church property falls under?
Your property tax bill and water utility bill will identify whether your address is in the City of Falls Church or Fairfax County. Your compliance notice will also indicate which water authority sent it. When you contact us to schedule, we can confirm your jurisdiction and the correct filing process for your address.
What happens if I miss my annual backflow testing deadline in Falls Church?
Missing your deadline results in a non-compliance notice from your water authority. Continued non-compliance can escalate to fines and, in persistent cases, water service interruption. If you have received a non-compliance notice, contact a certified tester immediately and schedule your test as a priority.
Can the same company handle both City of Falls Church and Fairfax County properties?
Yes. Backflow Services Done Right is certified and authorized to serve both jurisdictions. We handle the correct filing process for your specific address regardless of which water authority administers your compliance requirements.
What backflow preventer types are common in Falls Church?
The most common assemblies in Falls Church residential properties are Pressure Vacuum Breakers on irrigation systems and Double Check Valve Assemblies on main water lines. Commercial properties with high-hazard connections, such as restaurants and medical offices, typically require Reduced Pressure Zone assemblies. Our technicians can identify your assembly type immediately upon arrival.
Serving Falls Church Homeowners and Businesses
Backflow Services Done Right has served Northern Virginia properties since 1928. We are Virginia DPOR certified, licensed, bonded, and insured, and we are an authorized backflow vendor for Fairfax County. Our service area covers the entire Falls Church area, including all City of Falls Church addresses and Falls Church neighborhoods within Fairfax County, such as Seven Corners, Pimmit Hills, Baileys Crossroads, Holmes Run Acres, and Lake Barcroft.
Every service visit includes a complete test report filing with the correct water authority for your jurisdiction, a signed copy of your results the same day, and same-visit repairs whenever possible, so you do not need to schedule a return appointment.
We understand that receiving a compliance notice can feel like an unexpected obligation, especially if you were not previously aware that your property had a backflow preventer requiring annual certification. Our job is to make the entire process straightforward, fast, and fully handled on your behalf. You book the appointment, and we take care of everything else.
View all of our backflow services across Northern Virginia.
Book Your Falls Church Backflow Service Today
Contact us with your property address, and we will confirm your jurisdiction, identify your assembly type, and provide a flat all-in price with filing included and no hidden fees, usually within one business day.