Backflow Testing & Certification in Hillsboro, OR
New construction or first-year backflow assembly? We handle the initial certification and keep you on schedule for annual testing going forward.
Backflow Testing Built Around Hillsboro
With as much new construction as Hillsboro's seen, a lot of backflow assemblies out here are only a year or two old — which means a lot of property owners are hitting their very first required annual test and aren't sure what to expect. It's a straightforward visit, we walk you through it, and we file the certification with the city.
We test, certify, and submit the paperwork to your water provider so the compliance side is handled, not just the wrench-turning. If the assembly fails, we'll quote the repair before doing any work.
Who Needs Backflow Testing in Hillsboro?
New commercial buildings, new irrigation systems, and any property with a fire line installed in the last year are typically due for their first annual test. If your building department flagged a backflow assembly during final inspection, that's the one we're talking about. Residential properties with irrigation systems also need annual testing under Washington County's cross-connection control rules.
What's Involved
The Test
A certified tester checks the assembly under pressure to confirm it's actually preventing backflow — not just installed and forgotten. Takes 30–60 minutes per assembly.
The Certification
We file the results directly with your water provider so you're not the one tracking down forms or chasing submission deadlines.
The Repair (If Needed)
If it fails, we quote the fix on the spot before touching anything. Once repaired, we retest and re-file the certification — handled start to finish.
What to Expect When You Call Us
Here's exactly how a backflow testing visit works — from scheduling to certification in hand.
We come out, locate all backflow prevention assemblies on the property, and perform the certified pressure test on each one.
Results get filed with your water provider — whether that's Hillsboro's water system or Tualatin Valley Water District — along with the official test report. You get a copy.
If anything fails, we explain what failed, quote the repair, fix it, and retest the same day. First-year assemblies rarely fail but it does happen, usually from a manufacturing defect or improper installation.
What Does Backflow Testing Cost in Hillsboro?
Backflow tests in Hillsboro run $75–$150 per assembly. New construction properties with multiple assemblies (irrigation plus fire line, for example) get a bundled rate when tested together. All repairs are quoted before work begins.
Common Questions About Backflow Testing in Hillsboro
Who requires backflow testing in Hillsboro?
Both the City of Hillsboro Water Department and Tualatin Valley Water District (depending on your service area) require annual backflow prevention testing. New construction is typically required to test within the first year of the assembly being installed and annually after that.
My Hillsboro building just passed final inspection. When do I need the first backflow test?
Usually within the first year of the assembly being in service — the exact deadline depends on your water provider's registration date for the assembly. If you're not sure of your deadline, we can look it up when we come out. It's better to get it done early than to receive a compliance notice.
Do I need backflow testing for a residential irrigation system in Hillsboro?
Yes. Washington County's cross-connection control requirements apply to residential properties with irrigation systems. The backflow preventer on your irrigation line needs annual testing and certification, even for single-family homes.
What's the difference between a backflow preventer and a backflow prevention assembly?
A backflow preventer is the device itself. A backflow prevention assembly is the complete installation — the device plus the shutoff valves, test cocks, and fittings required to properly test it. Testable assemblies (like a Reduced Pressure Zone or Double Check Valve assembly) are what the annual certification requirement applies to.
What Hillsboro Customers Say
"Our building's backflow preventer was new and we had no idea we needed annual testing until the city sent a reminder. They explained the whole thing and got us compliant same week."
Due for Backflow Testing in Hillsboro?
Call us, or send a request through the contact form, and we'll get you on the schedule in Hillsboro.