Backflow preventer testing is a critical part of maintaining a safe and code-compliant fire protection system. At Fire Protection, Inc. (FPI), we provide reliable backflow preventer testing and inspection services for commercial and industrial properties throughout Seattle and the surrounding Puget Sound region. Our certified technicians help property managers protect water supplies, meet state and local requirements, and avoid costly system failures.
Whether you’re operating a warehouse, managing a high-rise building, or maintaining a campus-style facility, regular backflow preventer testing is essential to keeping your fire protection systems safe, functional, and legally compliant.
A backflow preventer is a device that protects the potable water supply by preventing contaminated water from flowing backward into the municipal system. These devices are commonly installed where fire sprinkler systems, irrigation systems, or other non-potable water systems connect to the city water line.
In fire protection systems, backflow preventers are a key line of defense against cross-contamination. If water pressure drops in the municipal supply, without a backflow preventer, stagnant or chemically treated water from sprinkler lines can re-enter the drinking water system. This poses a major health risk and is a direct violation of plumbing and health codes.
Backflow preventers are mechanical systems that must be tested annually to verify they’re operating correctly. In Seattle, Tacoma, Bellevue, and surrounding areas, annual backflow testing is required by local water authorities and fire departments. Failing to comply can result in citations, water shutoffs, or delayed occupancy approvals.
Benefits of annual backflow preventer testing include:
- Meeting local fire and plumbing code requirements
- Preventing contamination of public drinking water
- Reducing liability for building owners and managers
- Supporting proper function of fire sprinkler and suppression systems
FPI’s certified technicians test and service backflow preventers according to Washington state regulations and the specific requirements of your local water utility.
If your device fails an annual test or shows signs of wear, FPI can provide the necessary repairs or part replacements. We carry common repair kits and components, and we can quickly restore your backflow preventer to full working condition. All repairs are followed by a retest to verify performance and submit updated compliance documentation.
Our technicians are trained to:
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Troubleshoot common backflow preventer issues
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Replace seals, springs, check valves, and diaphragms
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Rebuild assemblies when needed
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Perform re-tests and file updated reports
We’ll keep your devices operating correctly and help avoid costly replacements or downtime.
At FPI, we take a proactive approach to backflow preventer testing. Our technicians inspect and test your devices using calibrated equipment and procedures approved by your authority having jurisdiction (AHJ).
Our services include:
- Annual backflow preventer testing for compliance
- Inspection and functionality checks
- Documentation for AHJ and water authority records
- Minor repairs and part replacements as needed
- Re-testing after service or failed inspections
We work with all common backflow preventer types, including reduced pressure zone (RPZ) assemblies, double check valve assemblies (DCVA), and pressure vacuum breakers (PVB).
In addition to annual testing and inspections, FPI provides backflow preventer support as part of new fire protection system installations and retrofits. Our design and installation teams work together to select, place, and install approved backflow assemblies during construction.
We’ll also help you submit required permits and design documentation to meet plumbing and water authority requirements during project planning and inspections.
Regular backflow preventer testing is not optional, it’s a critical part of maintaining code compliance and protecting your water supply. FPI helps property managers stay on top of annual testing, repairs, and documentation with responsive service and knowledgeable technicians.
Our team is easy to schedule, familiar with local compliance standards, and committed to keeping your systems working properly year-round.
FPI specializes in serving the unique needs of large-scale properties. We regularly perform backflow preventer testing for:
Manufacturing and warehouse facilities
Food Service and Restaurant Properties
Healthcare and assisted living communities
Multi-Family Communities
Hotels and hospitality properties
Shopping centers and retail buildings
Office buildings and campuses
multi-tenant buildings
Educational Properties
Many commercial properties have multiple devices that require annual testing. Our team keeps detailed records and can schedule recurring service appointments so you stay compliant year after year.
If your annual backflow test is due or you’re unsure about your device’s compliance status, contact Fire Protection, Inc. today. We’ll schedule a service appointment, perform all required testing, and provide the documentation you need to stay in compliance.
Trust FPI for reliable backflow preventer testing and fire protection system support across Seattle and the surrounding areas.