Backflow Testing and Certification Services
We cover the full range of backflow services for homes, HOAs, and businesses in Yorba Linda. Whether you need annual testing, a repair after a failed test, or a new device installed, we handle it. If you have been searching for backflow testing services Yorba Linda California, we are your local team. We also serve Placentia, Brea, Anaheim, Chino Hills, and Corona.
Ways we can help
Backflow Testing and Certification Services
We cover the full range of backflow services for homes, HOAs, and businesses in Yorba Linda. Whether you need annual testing, a repair after a failed test, or a new device installed, we handle it. If you have been searching for backflow testing services Yorba Linda California, we are your local team. We also serve Placentia, Brea, Anaheim, Chino Hills, and Corona.
Annual Backflow Assembly Testing
Yearly testing keeps your assembly compliant with California Code of Regulations Title 17 and your water district. We test RPZ, double check, and PVB assemblies, file the certificate, and remind you when next year's test is due. Most residential tests take 20 to 30 minutes.
View service 02Irrigation System Backflow Testing
Irrigation lines are a common source of cross-connections. We test your pressure vacuum breaker or RPZ, check for leaks and frozen components, and make sure your sprinkler system is not putting your drinking water at risk. We work with all major brands.
View service 03Backflow Test and Repair
If your device fails, we do not just hand you a report. We diagnose the problem, whether it is a stuck check valve, a bad relief valve, or worn O-rings and gaskets, and repair it on the spot. Then we retest and file the passing certificate.
View service 04Backflow Preventer Installation
New installation or replacement? We size and install the right assembly for your property, whether it is a reduced pressure zone assembly for commercial use or a double check valve for irrigation. We pull permits and handle the inspection.
View service 05Backflow Preventer Replacement
When a device is beyond repair or has been stolen, we replace it fast. We stock common sizes and brands, including Watts, Febco, and Zurn, so you are not waiting weeks for parts. We also install theft guards to prevent repeat problems.
View service 06Reduced Pressure (RP) Assembly Service
RPZ assemblies are required for high-hazard applications like commercial kitchens and fire lines. We test, repair, and certify reduced pressure zone assemblies. Our testers carry a differential pressure gauge and backflow test kit on every call.
View service 07Double Check Valve Service
Double check valve assemblies are common on irrigation and residential lines. We test them annually, repair leaking check valves, and replace worn parts. If your double check fails, we can usually repair it the same visit.
View service 08Pressure Vacuum Breaker (PVB) Service
PVBs protect against back-siphonage on irrigation systems. We test, repair, and replace pressure vacuum breakers, and we check for freeze damage after winter. If your PVB is leaking or stuck open, we fix it.
View service 09Commercial Backflow Testing
Commercial properties in Yorba Linda, from Savi Ranch to Yorba Linda Town Center, need annual testing on every assembly. We handle multi-device accounts, keep your records straight, and file with the county health department and your water district.
View service 10Fire Sprinkler Backflow Testing
Fire line backflow assemblies require annual testing under NFPA 25. We test and certify fire sprinkler backflow preventers, coordinate with your fire inspector, and make sure your building stays compliant. We work around your schedule.
View service 11Water District Compliance Reporting
We file your test results directly with your water district and the county health department. You get a copy for your records, and we keep track of your next due date. No paperwork headaches, no missed deadlines.
View service 12Backflow Device Relocation and Theft Guard Installation
Backflow preventer theft is a real problem in Orange County. We relocate exposed devices to safer spots and install theft guards and cages. If your assembly was stolen, we replace it and secure it so it does not happen again.
View serviceHow service works
How Our Backflow Testing Process Works
We keep it simple: you call, we schedule, we test, we file. Most jobs are done in under an hour, and you get your certificate the same day.
Call or Book Online
Tell us your address and assembly type, or send a photo. We confirm your appointment, usually same-day or next-day, and give you a window so you are not waiting around.

Why people choose us
Why Yorba Linda Calls Us for Backflow Testing
We are not a franchise or a call center. We are a local crew that tests backflow assemblies every day in Yorba Linda and knows the water districts, the inspectors, and the common failure points. Here is what you get when you book with us.
Before the visit
Backflow Testing Yorba Linda CA FAQs
Here are the questions we hear most from Yorba Linda homeowners and businesses about backflow testing, certification, and repairs.
Most residential backflow tests in Yorba Linda run $75 to $125 per assembly in 2026. Commercial assemblies and fire line devices may cost more. If your device fails and needs repair, expect $150 to $350 for common fixes. We give you a written estimate before we start, so there are no surprises.
We do. Our testers hold AWWA Cross-Connection Control and ABPA Backflow Prevention Certification, and we file your certificate with your water district and the county health department. We serve all of Yorba Linda, including 92886, 92887, and 92885, plus Placentia, Brea, and Anaheim.
We offer same-day and next-day appointments for most of Yorba Linda, and we handle urgent compliance deadlines and failed tests quickly. If your device was stolen or your water was shut off, call us at (714) 880-7120 and we will get you scheduled fast. After-hours calls are returned promptly.
Look for certified testers who file with your water district, carry parts for common brands like Watts, Febco, and Zurn, and can repair what they test. Ask if they handle compliance reporting and theft guard installation. We do all of it, and we are local to Yorba Linda.
You can get certified testing from us at (714) 880-7120. We test RPZ, double check, and PVB assemblies, file your certificate within 24 hours, and keep track of your next due date. We cover Yorba Linda and nearby Orange County cities, including Chino Hills and Corona.
Your next step is waiting
Schedule Your Backflow Testing Yorba Linda CA Today
Do not wait for a compliance notice or a failed test. Call (714) 880-7120 and we will get your assembly tested, certified, and filed, usually the same day. Certified testers, upfront pricing, local service.
Start with the basics
Contact Yorba Linda Backflow Testing
Call us at (714) 880-7120 or email [email protected] to schedule your backflow test or ask about a repair. We answer calls Monday through Friday, 8:00 a.m. to 6:00 p.m., and we return after-hours messages promptly. Same-day and next-day appointments are usually available.