Backflow Prevention · Tigard, OR
Backflow Prevention Testing and Installation in Tigard, OR
Oregon requires most backflow prevention devices to be tested every year by a certified tester. Got a notice from Tigard Water? We test, repair and install backflow preventers for residential and commercial properties in Tigard. Results submitted directly to the water purveyor.
- Oregon certified backflow tester
- Results submitted to Tigard Water
- Upfront pricing before any work starts
What Is Backflow?
What Is Backflow and Why Does It Matter?
Backflow happens when water flows backward through your plumbing — from your property back into the public water supply. Under normal conditions, water pressure keeps flow moving in one direction. But if pressure drops suddenly (a main break, heavy fire department use, a burst pipe), water can get pulled backward and contaminate the supply.
A backflow preventer is a valve that stops this. It allows water to flow in one direction only. Oregon law requires most of these devices to be tested annually to confirm they're working correctly.
Every irrigation system connected to the potable water supply in Oregon requires a backflow preventer. Fertilizer, pesticide and soil can be pulled back into the water line.
Restaurants, medical offices, car washes and any commercial property with a cross-connection require a backflow assembly on the service line.
Got a notice from Tigard Water?
If you received a letter saying your backflow preventer needs to be tested, you're required to have it done by a certified tester and submit results by the deadline.
Call us and we'll schedule the test, handle the paperwork and submit results on your behalf.
Call (503) 506-0396Our Services
Backflow Services We Provide
We test your backflow preventer with calibrated equipment and submit a passing report to your water purveyor. If it fails, we tell you what needs to be repaired before resubmitting.
If the device fails testing, we repair or rebuild it — seals, springs, check valves — and retest before submitting the report.
Adding an irrigation system, a new commercial connection or a fire suppression system? We size, supply and install the correct backflow assembly for the application.
Not sure if your property has a cross-connection that requires protection? We can assess your plumbing and identify any points where contamination could occur.
Device Types
Types of Backflow Prevention Devices
Pressure vacuum breaker (PVB)
Common on residential irrigation systems. Must be installed at least 12 inches above the highest irrigation head. Cannot be used for continuous pressure applications.
Reduced pressure zone assembly (RPZ)
The highest level of protection. Required for high-hazard applications (commercial, fire lines, chemical injection). Has a relief valve that discharges water if the check valves fail.
Double check valve assembly (DCVA)
Used for low-to-medium hazard connections. Common on commercial fire suppression systems and some irrigation lines. Does not discharge water.
Atmospheric vacuum breaker (AVB)
The simplest type. Used for individual hose bibbs and faucets, not on mains. Must not be under continuous pressure.
What to Expect
How Backflow Testing Works
Share the notice from Tigard Water or tell us the type of device. We schedule a visit.
Using calibrated test equipment, we check that the backflow preventer is working within required tolerances. The test takes 15–30 minutes in most cases.
If it passes, we complete the report. If it fails, we tell you what needs to be repaired and give you the price before we touch anything.
We repair or rebuild the failed assembly on the spot in most cases and retest before completing the paperwork.
We file the test report with your water purveyor (Tigard Water). You get a copy for your records.
Transparent Pricing
Backflow Service Cost in Tigard
| Service | Typical Cost |
|---|---|
| Annual backflow test (residential PVB) | $50 – $100 |
| Annual backflow test (commercial RPZ/DCVA) | $75 – $150 |
| Backflow preventer repair (seals/springs) | $100 – $300 |
| Full backflow assembly replacement | $300 – $800 |
| Residential irrigation backflow installation | $200 – $500 |
| Commercial backflow installation | $500 – $2,000+ |
These are ranges, not quotes. Device type, size and location all affect the price. You get the price upfront.
Local Knowledge
Backflow Prevention in Tigard: What to Know
Tigard Water's annual testing requirement
Tigard Water District operates under Oregon's Cross-Connection Control Program. Property owners with backflow prevention assemblies are required to have them tested annually and submit results to Tigard Water. If you miss the deadline, Tigard Water can shut off your service.
Irrigation systems are the most common
Most residential backflow testing in Tigard involves pressure vacuum breakers (PVBs) on irrigation systems. Tigard's wet winters mean many homeowners put irrigation on hold and forget the annual test is still required regardless of use.
Oregon certified testers only
Oregon requires that backflow tests be performed by a certified backflow assembly tester. Only test reports from certified testers are accepted by water purveyors. We are Oregon certified and carry calibrated test equipment on every visit.
Coverage
Backflow Testing Near Tigard
Tigard ZIP codes: 97223 97224 97281
Common Questions
Backflow Prevention Questions
Backflow Test Due? We Handle Everything
Certified testing, on-the-spot repairs and results submitted to Tigard Water. Call to schedule.