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After-Hours Emergency(415) 621-4292

San Francisco service

Backflow Prevention & Testing

SFPUC requires annual backflow testing on every commercial property with a backflow prevention assembly. Our AWWA-certified testers handle the full process: test, report, file with the city, and repair or replace failed assemblies.

Backflow Prevention & Testing

What this service includes

  • AWWA-certified testers
  • Annual compliance testing
  • Direct SFPUC filing
  • Assembly repair and replacement
  • New installation for tenant improvements
  • Irrigation and fire suppression systems

Why neighbors call Lutz

We've been doing this in San Francisco since 1929. Over the decades we've learned that the best plumbing service has less to do with clever marketing and more to do with showing up on time, diagnosing honestly, and doing the work right the first time.

Every Backflow Testing job we take on comes with our craftsmanship warranty, fully licensed technicians, and transparent pricing. If you've been burned by the industry before, we hope we'll be the company that restores your faith in it.

Our process

  1. 1
    Diagnose

    We inspect the actual problem with camera or thermal tools where it matters, before we quote anything.

  2. 2
    Quote

    Written quote before any work starts. Simple jobs get a fixed price; complex ones get a clear scope plus how we'll handle anything we discover along the way. No surprise invoicing.

  3. 3
    Fix

    Permitted, licensed, and to code. Tidy site management. Done in the smallest number of visits possible.

  4. 4
    Warranty

    We sign off on our own work. If it's not right, we come back.

Common questions

How quickly can you get here?

We aim to dispatch within a few hours for emergencies across San Francisco, depending on crew availability. Scheduled service is usually available same-day or next-day.

Do you handle permits?

Yes. Every job that requires a permit is permitted by us, signed off by DBI or SFPUC as appropriate, and the paperwork is handed to you when we're done.

What's your warranty?

Craftsmanship is warrantied for one year. Most manufacturer warranties we'll handle on your behalf if an issue comes up.