Backflow Preventer Testing in Oklahoma City, OK
Backflow preventer testing verifies that the backflow prevention device on your fire sprinkler line or domestic water system is preventing contaminated water from flowing back into the public water supply. Oklahoma City Fire Protection performs annual backflow testing and certification for commercial properties across the OKC metro. We test and certify — we do not install or repair backflow preventers.
Inspection at a glance
- NFPA Code
- ASSE / Local
- Frequency
- Annual backflow testing is required for all commercial backflow assemblies on fire lines and most domestic water systems in Oklahoma City and surrounding communities
- Response
- Within 24 hours
Understanding backflow preventer testing
A backflow preventer is a mechanical device that keeps water from flowing backward from your building's fire sprinkler or domestic system into the public water supply. Annual testing is required to confirm the internal check valves and relief valves are functioning.
Backflow testing is required by Oklahoma City Water Utilities, the Oklahoma Department of Environmental Quality, and your local water authority, in addition to fire code requirements for fire lines.
We test and certify — we do not install or repair backflow assemblies. If a device fails, we document it and refer you to a licensed plumber for repair or replacement.
Our inspection checklist
- Reduced pressure principle (RP) assemblies — check valve #1, check valve #2, relief valve
- Double check (DC) assemblies — both check valves
- Pressure vacuum breaker (PVB) assemblies
- Test cock operation and gauge calibration
- Forward and reverse flow verification
- Enclosure and freeze protection (where applicable)
Inspection frequency
Annual backflow testing is required for all commercial backflow assemblies on fire lines and most domestic water systems in Oklahoma City and surrounding communities. Some jurisdictions may require additional testing after repairs.
Benefits of staying compliant
Stay compliant with Oklahoma City Water Utilities and local water authority requirements
Protect your building's water supply from contamination
Avoid fines and water service interruptions for expired certifications
Documented test report and certification for your records and the water authority
Our inspection process
1. Schedule
Call or request online. We confirm a test date — usually within one week across the OKC metro.
2. Test
Our certified tester performs the required valve tests and records pressures and flow results.
3. Certify
You receive a completed test report and certification form for your water authority and records.
Oklahoma code requirements
Oklahoma City Water Utilities requires annual backflow testing for all commercial assemblies. The Oklahoma Department of Environmental Quality and local water authorities enforce testing for fire lines and domestic systems. Fire code also requires backflow testing for fire sprinkler connections.
Who needs this inspection
Backflow Preventer Testing FAQs
More backflow testing
Related services
Schedule your fire protection inspection
Tell us about your property and the services you need. We'll send a same-day quote and get you on the schedule — usually within 24 hours across the Oklahoma City metro.
Ready to schedule your fire protection inspection?
One inspection. One report. Fully compliant. We handle every fire and life safety system for your commercial property — so you stay compliant without juggling multiple vendors.