Annual backflow assembly testing, repair, and certification for Kirkland businesses. Certified testers who handle the test and file results with the city.
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Backflow prevention devices protect the public water supply from contamination. If pressure drops in the main water supply (a water main break, heavy fire department usage, or a pump failure), water can flow backward through your building's plumbing and pull contaminants — chemicals, fertilizer, sewage, industrial fluids — back into the city water system. Backflow assemblies (RPZ valves, double-check valves, PVB devices) prevent this, but they have internal springs and check valves that wear out. A device that passed last year can fail this year. That's why annual testing is required — and why the city sends a notice when your test is due.
Our certified testers come to your property with calibrated test equipment, perform the required differential pressure tests on each backflow assembly, and document the results on the city-required forms. If a device fails, we diagnose the issue (stuck check valve, worn spring, damaged relief valve), repair it on-site when possible, and retest. If the device is beyond repair, we provide a quote for replacement and install the new assembly. Once everything passes, we file the test results with the City of Kirkland water utility — you receive a copy for your records.
Call us when your annual test notice arrives from the city, or we'll remind you if you're on a maintenance contract. We schedule around your business hours.
A certified BAT tester performs the differential pressure test on each assembly using calibrated gauges. The test takes 15 to 30 minutes per device.
If a device fails, we diagnose and repair it on-site — replacing check valve components, springs, or relief valve parts — and retest to confirm compliance.
Passing test results are filed with the City of Kirkland. You receive a copy of the test report for your records and compliance files.
Annual testing, on-site repair, and city filing — all handled in a single visit. Don't wait for the shutoff notice.
Call (425) 285-8696Certified testing, on-site repair, and city filing. One call handles your annual compliance.
Call (425) 285-8696We provide backflow prevention & testing in Kirkland and every neighboring community we serve.
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