Protecting drinking water across Annandale with certified backflow testing, expert assembly installation, and fast-response repair. As an authorized Fairfax County backflow vendor and DPOR-licensed Master Plumbing team, we deliver complete cross-connection control and direct utility compliance filing for homes and commercial properties.
Virginia state plumbing codes require all containment backflow devices connected to public water lines to be inspected and tested annually by a certified backflow device worker.
Proper backflow assembly installation requires exact sizing, correct orientation, and adherence to Virginia Uniform Statewide Building Code clearances.
When a backflow device leaks continuously or fails its annual test, quick action prevents property water damage and municipal fine notices.
At Backflow Services Done Right (operated by Baumbach Plumbing & Remodeling), our family-owned company has served Northern Virginia homeowners and business managers since 1928. Maintaining a properly functioning backflow assembly is essential to prevent polluted water from reversing into your property supply line or the municipal water grid. Potable water in Annandale is supplied primarily through Fairfax Water, which enforces strict cross-connection control rules under Virginia state plumbing codes and county ordinances.
Property owners with irrigation systems, commercial boilers, fire protection lines, or specialized plumbing fixtures receive annual testing notices from Fairfax County.
Whether you need an annual inspection report filed for a residence in Broyhill Crest, a new Reduced Pressure Zone (RPZ) device installed for a commercial property along Little River Turnpike, or emergency valve repair in Pinecrest, our licensed technicians provide fast, transparent, flat-rate service. We proudly service all residential and commercial neighborhoods across Annandale, including Mason District, Broyhill Crest, Wakefield, Ravenwood, Pinecrest, Annandale Terrace, and along the Columbia Pike corridor.
Different plumbing hazard levels require specific backflow prevention assemblies. Our DPOR-certified specialists service all approved device designs:
| Device Type | Common Application | Hazard Classification |
|---|---|---|
| Reduced Pressure Zone (RPZ) | Commercial Buildings, Boilers, Medical | High Hazard (Health Hazard) |
| Double Check Valve Assembly (DCV) | Indoor Plumbing, Low Hazard Systems Low Hazard (Non-Health) | Low Hazard (Non-Health) |
| Pressure Vacuum Breaker (PVB) | Residential & Commercial Lawn Sprinklers | High Hazard (Outdoor Siphonage) |
| Atmospheric Vacuum Breaker (AVB) | Hose Bibbs, Point-of-Use Fixtures | Low to Medium Hazard |
Engineered for high-hazard protection. RPZs feature two independent check valves separated by a hydraulically operated differential relief valve, making them essential for commercial properties, chemical feed lines, and boilers.
Feature two spring-loaded check valves in series. DCVs are typically installed indoors or in underground vaults for low-hazard applications where non-toxic substances could reverse into the line.
Designed specifically to prevent backsiphonage on lawn irrigation and sprinkler systems common in Annandale residential properties.
Simple physical or mechanical backflow barriers installed on specialized plumbing connections.
When you receive an official backflow testing notice from Fairfax County or Fairfax Water, resolving it is straightforward with our three-step process :
Contact us online or call (703) 250-4200 to schedule your test. We offer flexible appointment windows across Annandale.
Our licensed backflow tester evaluates the device, verifies serial numbers, and tests line pressures using calibrated diagnostic gauges.
Once the device passes, we submit the official test report directly to the Fairfax County Cross-Connection Control Program, marking your property compliant. If repairs are needed, we provide a clear, upfront estimate and often complete fixes on the same visit.
Operating under Baumbach Plumbing & Remodeling since 1928, our company brings nearly a century of continuous service and trust to Northern Virginia.
As an authorized vendor, we work directly with local utility guidelines to ensure quick, accurate compliance submissions.
We hold Virginia Class A License #2705041764 (PLB/GFC/HIC) with complete liability and worker's compensation coverage.
All backflow testing is conducted by technicians holding active certification from the Virginia Department of Professional and Occupational Regulation (DPOR).
Upfront pricing with no unexpected service fees or travel surcharges.
Trusted local experts delivering certified backflow services with fast response, transparent pricing, and dependable compliance.
Yes. Virginia State Plumbing Code and Fairfax County regulations require all commercial properties, residential sprinkler systems, and high-hazard connections to undergo annual testing by a certified technician.
Standard residential backflow testing in Annandale typically costs between $85 and $160, depending on location accessibility and assembly type. Commercial testing costs vary based on pipe size and assembly design.
If your assembly fails due to debris or worn seals, Fairfax County requires repairs to be completed. Our technicians carry OEM rebuild kits in their service vehicles and can complete repairs and perform a re-test during the same appointment.
Yes. As an authorized Fairfax County backflow vendor, we handle all paperwork and submit your passed test report directly to the county compliance department.
Sprinkler backflow devices should be tested during spring system startup before pressurized water is continuously supplied to outdoor irrigation lines.
In addition to Annandale, our certified technicians serve neighboring Northern Virginia municipalities:
Avoid municipal non-compliance notices or unexpected water safety issues. Trust Northern Virginia’s long-standing plumbing team to protect your water supply and keep your property up to code.
(703) 524-1250
(703) 250-4200
Class A Contractor #2705041764 (PLB/GFC/HIC)
11608 Fairfax Station Rd, Fairfax Station, VA 22039
