Stay Compliant.
Protect Your Water.
Skip The Hassle.
Certified backflow testing, repair & installation across six Southern California counties. We handle the test, any repairs on the spot, and the district paperwork — so you don't have to. Done right, the first time.
Complete Backflow Services
Every truck rolls out fully stocked — so we diagnose, test, and repair on the spot. Any assembly, any make, any size.
Testing & Certification
Certified annual testing on all device types — DCVA, PVB, RP/RPZ, SVB, and fire lines — with compliance docs filed to your water authority.
Learn more →Anti-Theft Protection
With scrap metal prices at record highs, backflow theft is surging. We secure your assembly before it becomes a target.
Learn more →Repair & Replacement
Fast, dependable repairs on any assembly. Trucks stocked with a full parts inventory means most repairs are completed on the first visit.
Learn more →Cross Connection Survey
Certified specialists evaluate your plumbing to pinpoint contamination risks and bring your property into full compliance.
Learn more →Calibration & Certification
Our state-of-the-art lab handles precision repair, testing, calibration, and certification of gauges, meters, and valves.
Learn more →Waterline Disinfection & Pressure Testing
Data-driven hydrostatic pressure testing and waterline disinfection that keep your system safe, compliant, and contamination-free.
Learn more →No Hidden Fees. Ever.
Straightforward rates for standard testing in LA & Orange County. Repairs and installs are always quoted in writing before we start.
Property managers, HOAs, and homeowners across Southern California trust Atlas — and they say so.
Read all reviews on Google"Very professional — they even texted me a photo of the technician before he arrived, and he showed up right at the time stated. Quick and easy."
"I called and they came out the next day for my backflow test — and charged me half of what I'd been paying. Great job. I'll definitely use them at my other locations."
"I called Victoria in the office and she had a technician out within the hour. The completed test and invoice were emailed to me with several ways to pay."
You Stay Compliant. We Handle The Rest.
Every year your water district requires a passing backflow test — miss it and you risk fines or a shutoff. We take that off your plate. For nearly 20 years, our five certified testers have made compliance simple for property owners and managers across six SoCal counties: we schedule the test, fix anything that fails on the spot, and file the paperwork with your district so you don't have to.
Compliant In Three Simple Steps
No confusing forms, no chasing your water district. We make staying compliant effortless.
Call or Request a Quote
Tell us your address and device. You get a clear, upfront price — no guesswork, no obligation.
We Test & Fix On Site
A certified tester comes out and runs the test. If your device fails, our stocked trucks fix it the same day.
You're Compliant
We file the paperwork with your water district for you. Done — your water is protected and your record is clean.
Real Jobs, Real Results
A look at recent testing, repairs, and custom theft cages across Southern California.
Six Counties, One Call
From Ventura County to San Diego County — we test from the coast to the inland valleys.
Request a Free Quote
Tell us what you need and we'll get right back to you. For emergencies, call or text 24 hours a day.
If it doesn't appear, call (562) 343-1436 or text (562) 304-3069.