Professional Backflow Device Testing in Portland, OR
SERVING PORTLAND, OR, BEAVERTON, OR, TIGARD, OR AND SURROUNDING AREAS

Do you live in Tigard or Portland, OR are looking for a licensed and certified team to provide backflow preventer testing at your home or workplace, or upon the fire sprinkler system? If so, please contact the Fire Extinguisher Service Center. We provide certified backflow testing for residential and commercial properties.
Call us today at
503-231-0535, to set up an appointment with one of our certified technicians.
On an annual basis, the state requires all residential and commercial backflows be tested by a certified technician. Our backflow technicians have completed all the requirements and have been certified by the state to test your backflow devices. Once entered, our computer database saves your information including the location of each of your backflows so when they are due for testing we can call and remind you before the state does.
How Backflow Device Testing Works
Our backflow testing in Portland, OR, follows strict industry standards to ensure accuracy and compliance. Our certified technicians perform a detailed inspection, which includes:
- Pressure checks – Verifying that the device maintains proper water pressure
- Valve inspections – Ensuring check valves and relief valves operate correctly
- Flow tests – Confirming no reverse flow occurs under different conditions
- Documentation – Providing official reports for city or business compliance records
Why Choose Fire Extinguisher Service Center?
We’re Portland’s trusted provider for backflow device testing in Portland, OR, because we offer:
- Same-Day and Emergency Service – Quick response for urgent testing needs
- Licensed and Experienced Technicians – Fully certified for all backflow assemblies
- Competitive Pricing – Affordable rates without hidden fees
- Compliance Guarantee – We ensure your system meets all local regulations
Don’t wait until it’s too late—schedule your backflow testing in Portland, OR with us today by calling at (503) 231-0535 and keep your water supply protected!
Backflow Prevention
Backflow preventers are the first line of defense in ensuring we have clean drinking water. Backflow, or reverse flow of water in a plumbing system, can contaminate drinking water with non-drinking water from water pumps, fire sprinkler systems, irrigation systems, and/or wastewater systems. Although the backflow preventer is a simple device, its function is critical in preventing water from flowing backward and acts as the first line of defense against the possible threat of drinking water contamination.
Whether at your home or your place of work, to keep water safe from possible contamination the backflow preventer must be routinely tested and inspected.
Every backflow preventer has unique testing procedures and intervals of inspection, let our certified backflow technician perform the required inspection and testing. We will provide you with the inspection results, and in the event, our team members identify a problem we will recommend a course of action to correct/repair the problem.
Frequently Asked Questions About Backflow Testing Near Portland, OR
To help you better understand backflow testing and its importance, we’ve compiled answers to common questions. This FAQ section covers everything from testing frequency to device types, giving you clear insights to keep your water safe near Portland, OR.
If you would like to learn more or would like to schedule a backflow device test, contact our team at 503-231-0535, or visit our contact page to send us a message. A member of our team will get back to you as soon as possible.
Fire Protection Backflow Testing and Your Fire Sprinkler System
This page focuses on backflow compliance as it applies specifically to fire protection systems, including fire sprinkler connections and suppression equipment served by the Portland municipal water supply. Fire sprinkler systems introduce a dedicated cross-connection point where untreated water from pipes, additives, or system corrosion can potentially flow back into the public supply. That specific risk is why fire protection assembly testing carries its own compliance obligations under Portland Water Bureau rules, separate from general domestic or irrigation requirements.
Why Fire Sprinkler Systems Require Dedicated Backflow Testing
Fire protection systems can sit dormant for extended periods, which may allow water inside the system to stagnate or degrade. When pressure fluctuations occur, that water may attempt to back-siphon into the potable supply. A properly functioning and annually tested backflow preventer on your sprinkler supply line is the mechanical safeguard that prevents this. Oregon Health Authority certification requirements apply to the technicians who test these assemblies, and test results must be reported to the relevant water authority within the required timeframe.
Fire Extinguisher Service Center has served Portland, OR, and surrounding communities since 1963, and its state-certified technicians can perform backflow testing on fire sprinkler system supply lines as part of a broader fire protection compliance visit.
What a Fire Protection Backflow Test Covers
Annual fire protection assembly testing typically includes these steps:
- Visual inspection of the backflow assembly for physical damage or corrosion.
- Calibrated gauge testing to verify check valve performance under pressure conditions.
- Relief valve function verification to confirm the device responds correctly to backpressure.
- Documentation of pass or fail results, submitted to the Portland Water Bureau within the required window.
- Coordination support if a failed test requires follow-up repair or re-testing before the assembly returns to service.
Keeping This Page Focused: How Our Backflow Pages Work Together
Fire Extinguisher Service Center maintains several backflow-related pages to help different property owners find the right information quickly. This page addresses preventer compliance as it relates to fire protection and sprinkler systems specifically. For general residential and commercial testing across the Portland metro area, visit Backflow Testing in Portland, OR. If your assembly has already failed a test and you need next steps, the failed backflow test guide covers what to expect from the Portland Water Bureau compliance process.
Staying current on fire protection assembly compliance can help protect your occupants, avoid enforcement action, and keep your fire system ready to perform when it matters. Call Fire Extinguisher Service Center at (503) 231-0535 to schedule your test or ask whether your sprinkler supply line assembly is due for service.













