Annual backflow testing
Testing by a certified tester with results filed for you.
Annual testing & compliance
Backflow Prevention & Certified Backflow Testing in Los Angeles
Got a backflow test notice from your water purveyor? We test, repair, and replace backflow preventers for commercial buildings, apartments, irrigation systems, and fire lines — and file the paperwork so you stay compliant.
- Live answer 24/7
- Flat-rate, no overtime fees
- Licensed contractor sent
- Satisfaction guaranteed
Dispatchers available now
Get a flat-rate price for backflow prevention & testing
- Price in writing before work starts
- Same rate nights, weekends & holidays
- Ask about this month's coupons
Licensed Contractor
We send one right to your door
24/7 Emergency Service
Nights, weekends & holidays
Satisfaction Guaranteed
100% on every single job
15+ Years Experience
Trusted by local homeowners
Backflow Prevention & Testing
Keep your water safe — and your property in compliance
Backflow happens when water flows the wrong way — from an irrigation system, boiler, fire line, or commercial process back into the public drinking water supply. Backflow prevention assemblies stop that from happening, and California water purveyors require them on many commercial, multi-unit, and irrigation connections.
Those assemblies must be tested when they're installed and typically every year after that by a certified tester, with results submitted to the water purveyor. Miss the deadline and you can face notices, fees, or even interruption of water service.
We test reduced-pressure (RP) assemblies, double check valve assemblies, and pressure vacuum breakers; repair failed devices with rebuild kits or replace them; and install new assemblies where they're required. Test reports are completed and submitted for you.
What's included
Our backflow prevention & testing services.
Everything we handle under backflow prevention & testing across Los Angeles, Orange County, the Valley, and the Westside.
RP assembly testing & repair
Reduced-pressure principle devices on domestic and fire lines.
Double check valve assemblies
Testing, rebuilds, and replacement.
Irrigation backflow preventers
PVBs and atmospheric vacuum breakers for landscaping.
New backflow installation
Correctly sized assemblies installed to code.
Failed test repairs
Rebuild kits, check springs, and relief valve repairs.
Freeze & theft protection
Enclosures and cages for exposed assemblies.
Compliance tracking
Reminders before your next annual test is due.
Get a flat-rate backflow prevention & testing quote
Tell us what's going on — we'll give you a written price before any work begins.
Don't wait on these
You need backflow service if
Small plumbing problems get expensive fast. If you notice any of these, call before it turns into water damage or an emergency.
Seeing one or more of these signs?
A dispatcher can usually tell you over the phone whether it's urgent — no charge to ask.
Call 877-481-4075- You received a backflow test notice from your water purveyor
- Your backflow assembly failed its last test
- Water is discharging from the relief valve on an RP device
- You own a commercial building, restaurant, or multi-unit property
- You're installing a new irrigation, fire, or boiler connection
- A tenant improvement or remodel added a cross-connection
- Your assembly is old, leaking, or damaged
- You need a test report filed before a deadline
How it works
From your call to a job done right.
No guesswork and no surprise invoices — here's exactly what happens when you book with us.
- 01
Schedule
We book the test around your business hours and deadline.
- 02
Test
Assembly tested with calibrated equipment.
- 03
Repair if needed
Failed devices repaired or replaced and retested.
- 04
File report
Results submitted to your water purveyor.
Honest pricing
How much does backflow prevention & testing cost?
Every job is different, so we don't guess over the phone and then change the number on site. We look at the problem, then give you a written flat-rate price before any work starts. The price you approve is the price you pay — and it's the same at 3 a.m. on a Sunday as it is on a Tuesday afternoon.
What affects the price:
- Number and type of backflow assemblies on site
- Assembly size (residential irrigation vs. commercial fire line)
- Whether repairs, rebuild kits, or replacement are needed
- Access, enclosure, and scheduling requirements
Real customers
What homeowners say after the rescue.
Our reviews come from real emergencies — and how we handled them.
Emergency Sewer Backup
“We had a sewer backup on a Sunday night — our laundry room was completely flooded. I called Rooter Rescue at 9 PM and they had a tech at the door within 45 minutes. He cleared a major root intrusion in the main line and had everything flowing again by midnight. I couldn't believe the response time. They're the only plumber I'll ever call.”
Sarah M.
Los Angeles, CA
Slab Leak Detection
“My water bill had been climbing for months and I couldn't figure out why. Rooter Rescue used electronic detection equipment to find a slab leak under my kitchen floor without ripping up a single tile — found it in under an hour. The repair was clean, fast, and came in exactly at the estimate. These guys are total pros.”
Mike T.
Los Angeles, CA
Water Heater Replacement
“My water heater died on a Friday morning. I called three plumbers — two couldn't get to me until next week. Rooter Rescue had a new unit installed that same afternoon. The tech explained every option clearly, gave me a fair price without any pressure, and left the work area cleaner than he found it. Five stars isn't enough.”
Jennifer L.
Los Angeles, CA
Specials & coupons
Save on your next plumbing repair.
Mention a coupon when you call or show it to your technician — we'll apply it to your written quote.
$50 OFF
Any Plumbing Repair
Save on any plumbing repair — leaks, fixtures, valves, drains, and more.
RESCUE50Limited-time offer
Minimum $300 job. Excludes service call / diagnostic fee.
$100 OFF
Water Heater Replacement
Tank or tankless — same-day installation available on most models.
HOTWATER100Limited-time offer
Valid on full water heater replacement with installation.
$35 OFF
Drain Cleaning
Kitchen, bath, laundry, or main line — cleared with rooter or hydro-jet.
DRAIN35Limited-time offer
One drain per visit. Not valid with camera inspection special.
FAQ
Backflow Prevention & Testing questions, answered.
Straight answers to what homeowners ask us most about backflow prevention & testing.
Most California water purveyors require testing at installation, after repairs, and at least once a year. Your purveyor's notice will list the deadline.
Related services
Often booked together.
Service area
Backflow Prevention & Testing near you.
Local service locations across Los Angeles County and Orange County — pick yours for local phone numbers and directions.
- Backflow Prevention & Testing in Beverly Hills
- Backflow Prevention & Testing in Burbank
- Backflow Prevention & Testing in Encino
- Backflow Prevention & Testing in Hollywood
- Backflow Prevention & Testing in Los Angeles
- Backflow Prevention & Testing in Malibu
- Backflow Prevention & Testing in Norwalk
- Backflow Prevention & Testing in Oak Park
- Backflow Prevention & Testing in Pasadena
- Backflow Prevention & Testing in Santa Ana
- Backflow Prevention & Testing in Santa Monica
- Backflow Prevention & Testing in Tarzana
- Backflow Prevention & Testing in West Hills
- Backflow Prevention & Testing in Winnetka
Available right now — 24/7
Need backflow prevention & testing? Call now.
A live dispatcher answers every call, 24/7. Get a flat-rate price for backflow prevention & testing with no overtime fees for nights, weekends, or holidays.
Get in touch
Request a free backflow prevention & testing quote
Tell us what's going on and we'll get back to you within the hour during business hours — or call 877-481-4075 any time for immediate help.
Phone · 24/7877-481-4075Emailinfo@rooterrescueplumbing.comService AreaLos Angeles, Santa Monica, Beverly Hills, Burbank, Glendale, Pasadena, Long Beach, Torrance, Inglewood & all surrounding LA communities
HoursOpen 24 Hours / 7 Days
Active water emergency? Don't fill out a form — call immediately. Every minute of active flooding causes structural damage.