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Lake Washington in deep blue with Mount Rainier on the far shore

Kirkland · King County

Backflow testing in Kirkland — and fast repairs when one fails

Kirkland gives you five business days to repair and retest a failed assembly. That is not a lot of time to find a tester, wait for parts, and book a retest. We carry common repair kits on the truck so most failures get fixed and retested in the same visit.

Book a test in Kirkland → (505) 377-4449

Kirkland Public Works program

How Kirkland’s backflow program works

The short version, summarized from the utility’s own cross-connection control materials.

Source: City of Kirkland Public Works · verified October 2026 ↗
01

An annual test by a Washington-certified Backflow Assembly Tester must be performed and submitted to the City.

02

If an assembly fails, it must be repaired and retested within five (5) business days.

03

Installation permits for new assemblies run through MyBuildingPermit.com.

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Report submission

Kirkland accepts test reports by email, fax or mail to its cross-connection control program. We email yours the day of the test.

Questions for the utility: cccprogram@kirklandwa.gov · (425) 587-3900

On the ground

What we see in Kirkland

Every city’s housing stock and commercial mix shapes what’s in the meter box.

Waterfront & lake-view irrigation

Lakeview and Houghton homes run serious landscape irrigation. Most of it is protected by PVBs or DCs that need yearly tests — and a good look at the freeze protection.

Services in Kirkland

Neighborhoods

Serving all of Kirkland

Parts of north Kirkland (Juanita, Finn Hill, Kingsgate) may be served by Northshore Utility District or another district rather than the City. Check the name on your water bill — we test for all of them.

  • Downtown
  • Moss Bay
  • Houghton
  • Lakeview
  • Everest
  • Norkirk
  • Market
  • Highlands
  • Rose Hill
  • Totem Lake
  • Bridle Trails
  • Juanita
  • Finn Hill
  • Kingsgate

FAQ

Kirkland backflow questions

01 Who can test my backflow assembly in Kirkland?
Only a Backflow Assembly Tester certified by the Washington State Department of Health. Kirkland Public Works also needs the tester’s current certification and test-kit calibration on file before it will accept a report — we keep ours current.
02 How do backflow test reports get submitted to Kirkland Public Works?
Kirkland accepts test reports by email, fax or mail to its cross-connection control program. We email yours the day of the test.
03 How much does backflow testing cost in Kirkland?
Residential tests start at $95 for the first assembly and $60 for each additional assembly on the same visit. Commercial assemblies start at $115 and fire-line assemblies at $145. Filing with Kirkland Public Works is included.
04 What if my assembly fails in Kirkland?
We show you the reading, quote the repair, and in most cases rebuild and retest on the same visit. The passing retest is what gets filed with Kirkland Public Works. Kirkland requires failed assemblies to be repaired and retested within five business days.

Nearby

Backflow testing in Bellevue → Backflow testing in Lynnwood → Backflow testing in Seattle →

Field test report · next due

Kirkland test due? We’ll handle it.

Book online in two minutes. We test, repair if needed, and file the report with your water utility — and remind you next year.

Book a test → (505) 377-4449
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