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King County · About 45 min from our base

Backflow Testing in Federal Way, WA

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

Book a test in Federal Way (206) 549-4992
  • WA-certified testers
  • Reports filed for you
  • 24/7 emergency dispatch

Federal Way is one of the largest cities in South King County, with big apartment and condo communities, established neighborhoods around Steel Lake and Twin Lakes, and a commercial core around The Commons. That makes HOA and multifamily assemblies a big part of the work here.

We test, repair and install backflow assemblies across Federal Way, and file every report with Lakehaven Water & Sewer District or whichever system serves your property.

Backflow services in Federal Way

Who is your water purveyor in Federal Way?

Your purveyor is the water utility that sends your annual test notice and receives your test report. Depending on your address, Federal Way properties are commonly served by Lakehaven Water & Sewer District.

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

Apartment and condo communities often have domestic, fire-line and irrigation assemblies spread across several buildings. Our HOA and property manager plans put every one of them on a single schedule with one summary for the board.

Neighborhoods we serve

  • The Commons area
  • Twin Lakes
  • Steel Lake
  • Mirror Lake
  • Dash Point
  • West Campus
  • Lakota

ZIP codes

98001, 98003, 98023, plus surrounding unincorporated areas.

How backflow testing works in Federal Way

  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.

Federal Way backflow FAQs

Who is the water purveyor in Federal Way?

Most of Federal Way is served by Lakehaven Water & Sewer District, which tracks testable assemblies and sends reminders. We submit your results to them after the test.

Do you come as far south as Federal Way?

Yes. We run South King County route days that include Federal Way, Kent, Auburn and Des Moines.

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