Backflow Testing Services in Petaluma, California
Finding a reliable backflow testing professional in Petaluma, California is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 8 backflow testing companies serving Petaluma and surrounding communities including Rohnert Park, Novato, Santa Rosa.
Whether you need annual backflow testing, RPZ (Reduced Pressure Zone) valve inspection, or cross-connection control services, the providers listed below offer professional testing services for both residential and commercial properties throughout the Petaluma area.
Most water authorities in California require annual testing and reporting for all backflow prevention assemblies. A certified backflow tester will inspect your devices, perform the required differential pressure tests, and file compliance reports with your local water authority.
Browse the listings below to compare ratings, read customer reviews, and contact backflow testing professionals near Petaluma directly. Use the filters above to narrow results by rating, review count, or specific services like RPZ testing and preventer installation.
Data source: Google Maps. Always verify licensing with your local water authority.
8 listed providers

Maples Plumbing & Heating
Testing Verified · Santa Rosa, CA · 12 mi
“Maples Plumbing to the rescue! I spent time doing research and when I called Maples I knew I was in good hands. They were available to send someone out to my house within 30 minutes of my call. Wes…”
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Super Service Plumbing
Testing Verified · Santa Rosa, CA · 13 mi
“My sewer pipe in my hall bathroom broke 6 years ago at the end of September; Super Service did the sewer pipe replacement work. On Monday, September 4th, I discovered the pipe that was replaced was…”
Read more on GoogleEconomy Plumbing
Testing Verified · Santa Rosa, CA · 16 mi
“Our water heater sprang a leak and we needed to replace it ASAP. My husband phoned Economy Plumbing and was told they could have a plumber out that day. In the meantime, my husband bought a new water…”
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Finetti Plumbing & Backflow
Testing Verified · Santa Rosa, CA · 16 mi
“Paul is an experienced plumber and knew exactly how to handle my tough situation. He has both a professional and friendly demeanor. He’s the kind of technician I want to keep on file for future…”
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Yorkshire Plumbing & Drain Services LLC
Testing Verified · Santa Rosa, CA · 16 mi
“I cannot complement Yorkshire plumbing. enough! I live in Santa Rosa and got their name from a friend. I had a huge leak that was almost flood status in my bathroom coming from my bath. Not only was…”
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Checkrite Backflow Services
Testing Verified · Santa Rosa, CA · 17 mi
“I've used Checkrite for over 10 years. They're less expensive than others and always get the job done with quickly with minimal effort on my part. I just send them the MMWD card with payment and it's…”
Helpful resources
Frequently Asked Questions About Backflow Testing in Petaluma
Many certified backflow testers in Petaluma will file test reports directly with your local water authority or municipality on your behalf. Confirm this with your provider before scheduling. Some jurisdictions require the property owner to submit reports, while others accept direct submissions from the tester.
Backflow testing in Petaluma, California typically costs between $50 and $200 per device, depending on the type of backflow preventer and the complexity of the installation. RPZ assemblies generally cost more to test than double check valve assemblies. Contact providers listed above for current pricing in the Petaluma area.
If a backflow preventer fails its annual test, the certified tester will diagnose the issue — often a worn check valve, damaged disc, or fouled relief valve. Most testers in Petaluma can repair the device on site and re-test it the same day. Your water authority may require the passing report within a set deadline.
Cross-connection control prevents contaminated water from flowing backwards into the clean water supply. Backflow prevention devices are installed at cross-connection points to protect public health. Regular testing ensures these devices function properly. Many municipalities in California require cross-connection control programs for commercial properties and irrigation systems.
Many municipalities in California require annual backflow testing for commercial and residential properties with backflow prevention devices. Your local water authority in Petaluma can confirm the exact testing schedule and deadlines for your area. Failing to test on time may result in fines or water service interruption.
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