Backflow Testing, Repair & Replacement in Livermore, CA
A backflow assembly keeps your drinking water supply from being contaminated by a cross-connection on your property. Most Bay Area water districts require annual testing and certification — and a failed test means a deadline, not a suggestion. The Otter Squad tests, certifies, repairs, and replaces backflow assemblies for commercial and residential properties, and we track your due date so you stay in compliance. We are a family-owned, union contractor licensed C-36 and C-42 under CSLB #1053855. Clear Lines or You Don't Pay a Dime.
The Otter Squad Guarantee
Clear Lines or You Don't Pay a Dime. If we can't clear your blocked line using our standard drain clearing procedure, you don't pay for the attempt.
Backflow Services We Provide:
- Annual Backflow Testing
- Backflow Repair
- Backflow Replacement
- Certification Filing Support
- Commercial & Multi-Tenant
- Compliance Reminder Program
When to Call Us About a Backflow Assembly
A backflow deadline from your water district is not a suggestion. These are the signs to call before you get a notice.
- A water district notice that your annual backflow test is due or overdue.
- A failed backflow test that needs repair and re-certification before a deadline.
- A new commercial tenant or build-out that requires a backflow assembly installed and certified.
- An older assembly that may no longer meet current district standards.
- A multi-tenant property with multiple assemblies due on different cycles.
- A restaurant, medical office, or HOA that needs a compliance reminder program.
How a Backflow Test Runs
We test, certify, and — if it fails — repair and re-test, all before your district deadline.
- 1
Test the assembly.
We test the backflow assembly to the district's standard and confirm whether it passes or fails.
- 2
Certify, if it passes.
If the assembly passes, we file the certification so your district record is current and set your next due date.
- 3
Repair, if it fails.
If the assembly fails, we diagnose the failure, give you upfront repair options, and repair it to code.
- 4
Re-test and certify.
We re-test after the repair so your certification is filed on time, and we track your next due date so you stay in compliance.
What Affects the Cost of Backflow Service
Backflow service is bid per job. What we promise is a free assessment and a firm written bid before any work begins. These are the factors that move the number.
- •The number and type of assemblies being tested.
- •Whether the assembly passes or needs repair or replacement.
- •Whether a failed assembly needs a code-compliant replacement, including permitting.
- •Whether the property is residential, commercial, or multi-tenant.
- •Certification filing and compliance reminder program setup.
- •After-hours or weekend scheduling to avoid disrupting operations.
Backflow, Drain Maintenance, and Compliance
Backflow testing is one part of a commercial property's compliance picture. We bundle it with the rest.
For a commercial property, backflow testing usually sits alongside drain maintenance, grease trap service, and commercial plumbing on the same compliance calendar. We track your backflow due date and remind you so a missed test never becomes a district violation — and we can bundle the whole compliance picture under one vendor.

Alfredo Ortiz
Owner, The Otter Squad · C-36 & C-42 #1053855
I am Alfredo Ortiz, and I have spent more than 30 years in the plumbing trade. The Otter Squad is my family's company, Latino-owned, licensed under CSLB #1053855 for C-36 plumbing and C-42 sanitation, and staffed by union, UA-trained crews. A backflow deadline from your water district is not a suggestion — I test, certify, and if it fails, repair and re-test before the deadline, and I track your due date so you stay in compliance. Call me any time, day or night, at (925) 397-2271.
Alfredo Ortiz · Owner, The Otter Squad · C-36 & C-42 #1053855 · 30+ years in the trade
How we work
Diagnose first
We find the real problem before we quote, so the fix matches what is actually wrong, not a guess.
Explain clearly
We show you what we found in plain language, with photos or camera footage.
Honest options
Real choices and upfront pricing, and we point you to the honest path, not the priciest one.
Done the right way
Tidy, licensed work, backed by the Otter Squad Guarantee.
Why Livermore chooses The Otter Squad
We're family-owned and Latino-owned, led by Alfredo Ortiz with 30+ years in the trade, fully licensed (C-36 & C-42 #1053855), bonded, and insured. We diagnose the real problem first, then give you honest options and upfront pricing before any work begins.
Every backflow job is documented and backed by the Otter Squad Guarantee: Clear Lines or You Don't Pay a Dime.
Schedule Backflow Testing
Prefer to talk now? Call (925) 397-2271. We answer 24/7.
Frequently Asked Questions
Problems With Water? Call the Otter.
We answer 24/7. Diagnose first, honest options, upfront pricing.
