24/7 emergency dispatch: (425) 361-8886 Scheduling Mon–Fri 8–4 · (206) 549-4992

King County · About 30 min from our base

Backflow Testing in Redmond, WA

State-certified backflow testing, repair and installation for Redmond homes, HOAs and businesses, with your test report filed with your water purveyor for you.

  • WA-certified testers
  • Reports filed for you
  • 24/7 emergency dispatch

Redmond combines large tech and research campuses, a fast-growing downtown and established neighborhoods like Education Hill and Grass Lawn. That means everything from lawn-sprinkler assemblies to large domestic and fire-line assemblies in office, lab and multifamily buildings.

We test, repair and install backflow assemblies across Redmond, and we're used to working with facility managers who need testing scheduled around people and operations.

Backflow services in Redmond

Who is your water purveyor in Redmond?

Your purveyor is the water utility that sends your annual test notice and receives your test report. Depending on your address, Redmond properties are commonly served by the City of Redmond.

Not sure which one is yours? Check the top of your water bill or the test notice itself. Or just give us your address when you book and we'll figure it out and send your report to the right place.

Local know-how

Labs, commercial kitchens and chemically treated boiler and cooling systems are high-hazard connections that typically need reduced-pressure assemblies. With new mixed-use buildings going up around the light rail stations, we also install and certify new assemblies for builders on tight timelines.

Neighborhoods we serve

  • Downtown Redmond
  • Overlake
  • Education Hill
  • Grass Lawn
  • Willows / Rose Hill
  • Bear Creek
  • Idylwood
  • Southeast Redmond

ZIP codes

98052, 98053, plus surrounding unincorporated areas.

How backflow testing works in Redmond

  1. Book

    Call or book online. Have your test notice handy if you got one.

  2. We test

    A certified tester checks every valve with a calibrated gauge, usually in under 30 minutes per assembly.

  3. We fix

    If it fails, we explain why and quote the repair. Most repairs can be done on the spot.

  4. We file

    Your passing report goes to your purveyor, and a copy comes to you.

Redmond backflow FAQs

Does Redmond require annual backflow testing?

Yes. Like every public water system in Washington, the City of Redmond requires testable backflow assemblies to be tested at installation and at least once a year after that.

Can you test at a corporate campus with multiple buildings?

Yes. We'll inventory the assemblies, test them in efficient batches, coordinate any fire-line work with your sprinkler contractor and deliver one set of reports.

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