A backflow prevention device stops contaminated water from being siphoned back into the clean water supply, and many California water utilities require an annual test to confirm the device is still functioning correctly. If your property has an irrigation system, a fire sprinkler system, or certain commercial fixtures, there's a reasonable chance you have one of these devices and an annual testing requirement attached to it.
We test existing devices, file the required certification with the water utility, and install new backflow preventers where one is needed but not yet present. If a test reveals the device has failed, we can typically repair or replace it the same visit rather than requiring a second trip.
Requirements vary by property type and what the device protects. A residential irrigation system typically needs a simpler test than a commercial fire sprinkler connection, and some water utilities require testing annually while others work on a different cycle. We confirm your property's specific requirement rather than assuming a one-size-fits-all schedule.
Why Call Us For This
Certified Testing
Testing performed to the standard your water utility requires for annual certification.
Certification Filing Handled
We file the required paperwork with the utility on your behalf after a passing test.
Same-Visit Repair
A failed device can usually be repaired or replaced the same day as the test.
Upfront Pricing
A flat price for testing, and a separate flat quote if repair or replacement is needed.
Signs You Need This Service
Annual Testing Notice From Your Water Utility
The most common reason for a call, a reminder that certification is due.
Visible Water Discoloration Near An Irrigation Connection
Can indicate a backflow issue worth checking even outside the annual cycle.
New Irrigation Or Fire Sprinkler Installation
New systems typically require a backflow preventer to be installed and certified before use.
Unknown Whether Your Property Has A Device
Common for newer homeowners; we can check during any service call.
If you're not sure whether your property has a backflow prevention device or when it was last tested, that's a common situation, not an unusual one, especially for a home that changed ownership without the paperwork being passed along. We can check for a device and its testing history as part of any visit.
Signs Your Backflow Device May Need Attention
- Discolored or unusual-tasting tap water, especially after irrigation system use
- Visible leaking or dripping from the device itself
- A notice from your water utility that testing is overdue
- Any recent change to your irrigation or fire sprinkler system
Due For Annual Backflow Testing?
We test, certify, and file the paperwork for you.
How It Works
Locate
We identify the backflow device and its type on your property.
Test
Certified testing confirms the device is functioning correctly.
File
Passing results are filed directly with your water utility.
Repair If Needed
A failed device is quoted and typically repaired the same visit.
What This Typically Costs
Device repair or replacement, if needed, is quoted separately after the test.
Common Questions
If you have an irrigation system, fire sprinkler system, or received a notice from your water utility, you likely have a device requiring annual testing. We can check during a visit if you're unsure.
Water utilities can issue notices and, in some cases, restrict water service for properties with an overdue required test. It's worth staying current on the annual requirement.
Most residential tests take well under an hour, assuming the device is easily accessible.
Yes, we install and certify new backflow preventers as part of new irrigation or fire sprinkler installations.
A certified tester connects testing equipment to the device and checks that each internal check valve holds pressure correctly, confirming water can't flow backward into the clean supply. It's a quick, non-invasive process for most residential devices.
If you're installing a new irrigation system and need a backflow device for the first time, we handle both the device and the initial certification. Homeowners in Downey with irrigation or larger properties can check our Downey service page for coverage details.