Protecting Hawaii's Water, One Test At A Time
Certified backflow testing and repair services that keep your property safe, compliant, and up-to-date across Oʻahu.
Experience You Can Trust. Service You Can Count On.
20+ Years Of Experience
Decades of Hands-On Knowledge You Can Rely On
All-In-One Service
Complete Testing & Repairs, Start to Finish
Certified Expertise
Fully Certified: DSO 3, WTPO 1, ABPA Tester & Proctor
Our Services
With full-service testing and repairs, we make it easy to stay on schedule and in good standing with Oʻahu’s water standards.
Annual testing isn’t just a requirement, it’s how you avoid fines, prevent water service interruptions, and protect your property’s drinking water. We make the process effortless by handling the testing, documentation, and reminders for you.
- Stay compliant with state and BWS regulations
- Automatic reminder for next year's testing
- We submit all paperwork digitally to BWS and CC you for easy record keeping
Temporary meters are often tied to tight construction schedules and permit requirements. We help you avoid delays and last-minute scrambling by providing fast, certified testing that keeps your project moving and your permits approved.
- Same-day or next-day service
- Quick turnaround so you stay on schedule
- Certified testing for construction sites, special events, and short-term water use
When your device fails, the last thing you need is to hunt down another company to fix it. We handle both testing and repairs, saving you time, preventing delays, and making sure your property gets back into compliance as quickly as possible.
- Expert repairs most testers don't offer
- Re-testing after repairs
- Fast diagnosis and repair so you avoid service interruptions
Helping You Stay Compliant, With Less Hassle
We handle the details so you don’t have to. Enjoy easy billing and fast communication you can rely on.
Hassle-Free Billing & Payment
Our clear invoicing and flexible payment options remove the stress from the process, helping you stay compliant without interruptions or extra steps.
Efficient Paperless Submission
No more searching for misplaced forms or dealing with stacks of paperwork. Our digital submissions keep your records secure, organized, and easy to access.
Commercial, Residential, Agricultural
Our experience across all property types means faster testing, fewer surprises, and confidence that your water system is in expert hands.
How Our 4-Step Process Works
We know how busy life can get. That’s why we’ve created a straightforward, no-nonsense process that makes compliance easy.
Submit BWS Form
Start by filling out our online request form and uploading your signed BWS test form (PDF). Once we receive it, we’ll take it from there.
Backflow Testing & Repair
We’ll come out, complete your backflow test, and handle any repairs if they’re needed.
Invoice & Payment
After your service is finished, we’ll send over a clear and simple invoice. If you ever have questions, we’re right here to help.
Final Submission
Once payment is received, we’ll send your completed test form directly to the BWS and make sure you get a copy for your records. We’ll also remind you next year before your due date.
Trusted By Our Community
After 20+ years in the industry, we’ve built lasting relationships with some of Oʻahu’s most recognized businesses.
Approved Devices
We service a wide range of BWS-approved backflow prevention assemblies for residential, commercial, and agricultural properties. Here are some of the most common device types, sizes, and models we work with.
WATTS/909M1QT
WILKINS/975XL2
Locally Owned. Community Focused. Water Is Our Kuleana.
At 808 Backflow Testing, we take pride in protecting Hawaiʻi’s water systems with reliable, honest, and accurate backflow prevention services. As a locally owned business, we understand the importance of keeping our communities safe and treat every property with the same care we’d give our own.
With over 20 years of hands-on experience, we’ve worked on commercial, residential, and agricultural systems of all sizes. From small home devices to large commercial assemblies, our expertise ensures your system meets all BWS and DOH requirements.
We are fully state-certified (DSO 3, WTPO 1, ABPA), with credentials issued by the DOH Safe Drinking Branch after completing all required testing and field experience.
Our mission is simple: make the process easy, keep communication clear, and ensure your system is safe and compliant.
Protecting Hawaiʻi’s water isn’t just what we do—it’s our kuleana.
What Our Customers Have To Say
Wallace Sakuma Jr.
Onsite Property Manager, St. Francis High School
"About 5 years ago I asked a friend I trust who has knowledge and experience in the industry who I could use for backflow testing. He recommended Bert and DeAnn Ramos from 808 Backflow Testing. Scheduling was easy and they arrived when expected. Bert demonstrated extensive knowledge of backflow system testing. I have used 808 Backflow Testing for annual system testing and repair since. They communicate results to us and complete and submit required documentation to the Board of Water Supply. They immediately respond to any questions. I highly recommend 808 Backflow Testing.”
Tany Nahulu
SASA, Ka Waihona O Ka Na’auao
“808 Backflow is the team you would like to call on your priority needs. Our school campus has had a backflow issue for quite some time since our last supervisor passed on. Husband and wife, Bert and DeAnn, was the team to call in getting our C&C requirements done on time before our deadline was up. He was also able to address our needs in correcting another issue that came up with our backflow. They are a great team that help to address any needs you have regarding your backflow. Call them today!”
