Washington certifies Backflow Assembly Testers through the Department of Health, and utilities in Washington accept reports only from certified testers.

Western Washington is wet and mild, while the east side has hot summers, freezing winters and heavy irrigation. Grizzly Backflow & Plumbing connects Washington owners with certified testers for annual backflow testing, irrigation backflow testing and test report filing. Call (833) 990-5874.

Certified backflow testers working in and around Washington
RPZ, double check, PVB and fire line assemblies
Test reports filed with your water utility
A person on the phone at (833) 990-5874

(833) 990-5874

Why call us for backflow testing

Washington Owners Call Us for Backflow Testing

Washington requires a DOH-certified Backflow Assembly Tester on every report. Grizzly Backflow & Plumbing connects Washington callers with certified testers.

East-side irrigation gets freeze checks. Reports go to the utility. Call (833) 990-5874 for annual backflow testing, irrigation backflow testing and backflow prevention in Washington.

Call (833) 990-5874

Certified testers

Testers whose certification your water utility accepts for Washington.

Report filing

Reports go in through the utility portal or on its own form.

Price first

You hear the price on the phone before the test is booked.

Readings, not guesses

Each check and relief valve gets an actual psid reading.

Repair on site

Rebuild kits for common brands, so many failed devices are fixed and retested in one visit.

Multi-device sites

Domestic, fire line and irrigation assemblies tested and tracked together.

Backflow testing FAQs

Questions about backflow testing

Common questions about backflow testing in Washington.

Talk to a person

How often does a backflow preventer need testing in Washington?

Most water utilities require a test once a year. Many also require one at installation, after any repair and after the device is moved. Your utility's notice letter gives the exact due date.

What happens if I miss the backflow test deadline?

Utilities usually send a second notice, and after that some add a fee or schedule a service shutoff. Calling (833) 990-5874 before the deadline is the simplest way to avoid it.

Why is water dripping from my RPZ relief valve?

A steady drip usually means debris is holding the first check open or the relief valve diaphragm is worn. A cleaning or a rebuild kit fixes most cases.

What does a failed backflow test mean?

A check valve or the relief valve did not hold its required pressure differential. The device needs repair or replacement, then a retest before a passing report can be filed.

How much does backflow testing cost in Washington?

Pricing depends on device type, size and the local market. Call (833) 990-5874 for current pricing on backflow testing in Washington.

Book a backflow test

Backflow Test Due in Washington? Call now.

Certified testers for backflow testing in Washington. Call (833) 990-5874 and we go through the device and the price before anything is booked.

(833) 990-5874

Phone · (833) 990-5874