Backflow Testing & Repair · Los Angeles & SoCal
Backflow testing that keeps your water safe and your provider happy.
Annual backflow testing, repair and replacement for homes and businesses.
A backflow preventer stops irrigation water, chemicals and other contamination from being pulled back into the drinking water supply. Water providers typically require these devices to be tested every year.
We test your assembly, repair or rebuild it if it fails, and replace it when it's past saving — for homes with irrigation, fire lines, and businesses.
Signs you need this
- You received an annual backflow test notice
- Your device failed a test
- A backflow preventer is leaking or dripping
- New irrigation, fire line or commercial build-out
What's included
- Backflow assembly testing
- Repair and rebuild of failed devices
- Backflow preventer replacement
- Test results provided for your water provider
Why Leon Plumbing
- Homes, landscapes and businesses
- Fast scheduling around your notice deadline
- In business since 1983
Backflow Testing & Repair: common questions
How often does backflow need testing?
Most water providers require a test once a year, and after a device is installed or repaired. Your provider's notice will list the deadline.
What happens if my backflow device fails?
We can usually repair or rebuild it on the spot, then retest it so it passes.
Backflow Testing & Repair near you
Leon Plumbing Advantage
Pay less for every plumbing visit — for $34.99/mo.
- Free $149 whole-home inspection
- $99 dispatch fee waived*
- 10% off all repairs & labor
- Same / next-day priority
- 2-year workmanship warranty
- 50% off after-hours premium