Hear from our Clients
Only company I’ll ever use. Great communication starting from office to technicians. Thanks guys!”
Pasha G.
“Reached out to them mid-morning and my backflow was tested mid-afternoon. Great place and great customer service! Thank you Adam and Jen, you guys are amazing.”
California Cremation and Burial
“It couldn't have been any easier and the customer service was way above and beyond. Easy, pleasant, and efficient! Thank you!
Nicol C.
“I have been using San Diego Backflow for the past year and their very simple testing jobs to complete a rebuild. The quality of their work is excellent and their scheduling and billing is accurate and on time.”
Jennifer L.
“Jen is always quick to respond to any inquiry we have! This company makes backflow testing a breeze and they have kept our two facilities in compliance for years. I highly recommend them!”
Austin J.

what we do
Servicing Residential & Commercial Properties
With over 26 years of experience, San Diego Backflow Testing provides trusted service across Oceanside. From backflow repairs and installations to annual testing, we’re here to help.
Our licensed and insured team ensures full compliance with water district regulations, managing everything from paperwork submission to follow-up reminders. Whether maintaining residential backflow preventers or addressing complex plumbing issues, we deliver reliable solutions tailored to meet your needs.
Schedule your service today, and let us handle the rest.

Getting Started
1. Get in Touch.
Need a backflow test or service? Simply text
619-937-2323 or email TEST@sandiegobackflowtesting.com, and a member of our team will be in touch shortly.
2. Schedule Your Service.
We’ll reach out to set a time at your convenience to service your backflow system.
3. Experience excellent customer service and quality servicing.
From annual maintenance to last-minute installations, we do it all! Get in touch with our team today to learn more about how we can help your backflow system stay safe, reliable, and efficient.
Our Certifications
American Water Works Association
American Society of Sanitary Engineering
American Backflow Prevention Association
We are also a member of the American Backflow Prevention Association.

why choose us
Why San Diego Backflow Testing?
Standout
Customer Service

Prompt
Response Time

Efficient Paperwork Processing

Our Backflow Services for Oceanside
We offer dependable solutions for all your backflow needs.

We offer a complete range of backflow services in Oceanside that are designed to keep your water systems safe and fully compliant. Whether you need routine testing, urgent repairs, or a new installation, our experienced team is ready to assist.
Contact
Get in Touch
Have a question, want to schedule a service, or need time-sensitive assistance?
Please contact us by texting 619-937-2323 or emailing TEST@sandiegobackflowtesting.com , and a member of our team will reach out shortly!
Phone
Address
2840 Fletcher Parkway #207 El Cajon, CA 92020
Our Partners

meet adam & Jen
When the plumbing company Adam Fulton worked for previously dissolved, he was still receiving calls to install, test, and repair people’s backflows. It was this overwhelming demand for quality servicing that led him to start San Diego Backflow Testing. Between Adam’s 26+ years of experience in both commercial and residential plumbing services, and his wife, Jen’s, entrepreneurship and background in construction, the dynamic duo leads their company with empathy, pride, and a dedication to excellence.






