Backflow Testing Services in Long Beach, California
Finding a reliable backflow testing professional in Long Beach, California is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 20 backflow testing companies serving Long Beach and surrounding communities including Seal Beach, Lakewood, Carson.
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 Long Beach 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 Long Beach 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.
20 listed providers

Roto-Rooter Plumbing & Water Cleanup
No reviews yet
Long Beach, CA · < 1 mi

J & D Plumbing & Heating Contractors
No reviews yet
Long Beach, CA · 2 mi

Advance Mechanical Contractors
No reviews yet
Testing Verified · Signal Hill, CA · 2 mi

Pete's Plumbing
No reviews yet
Testing Verified · Signal Hill, CA · 2 mi
Atlas Backflow Services - Backflow Testing Los Angeles + Orange County
Testing Verified · Signal Hill, CA · 3 mi
Cover Your Brass - Backflow Testing and Backflow Cage Manufacturer
Testing Verified · Signal Hill, CA · 3 mi
“Our plumbing company in Orange County Ca needed backflow anti theft cages asap for our customers who had their backflow assemblies stolen. Bill the owner came through for us! The products we…”
Read more on Google
Prodigy Plumbing | Long Beach Plumber
Testing Verified · Long Beach, CA · 3 mi


A-1 Performance Rooter & Plumbing
No reviews yet
Testing Verified · Long Beach, CA · 5 mi

BAVCO - Backflow Repair Parts & Backflow Supply
Long Beach, CA · 6 mi
“I ordered the parts for my PVB backflow preventer and it seem like I just got off the Internet and the parts were at my door it was fast!!!!! Customer service was very good, trust me, I would’ve gave…”
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A-A Backflow Testing and Maintenance
Testing Verified · Torrance, CA · 9 mi

Ferrari Backflow Inc.
Testing Verified · Redondo Beach, CA · 12 mi

Prevent Backflow & Plumbing Inc.
No reviews yet
Testing Verified · Anaheim, CA · 16 mi

CAL VALVE INC.
Testing Verified · Anaheim, CA · 17 mi
“Great location right off Anaheim blvd so it’s super convenient. They always have what I need especially when it comes to backflow parts that can be annoying to track down elsewhere. The staff are…”
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Pacific Plumbing of Southern California
Testing Verified · Santa Ana, CA · 19 mi

USC Foundation for Cross-Connection Control and Hydraulic Research
Los Angeles, CA · 19 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Long Beach
Residential tests typically involve a single PVB or DCVA device and are quicker to complete. Commercial properties in Long Beach often have multiple assemblies, RPZ devices, and fire-line backflow preventers that require more time and specialized equipment. Pricing and scheduling may differ for each type.
Many certified backflow testers in Long Beach 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 Long Beach, 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 Long Beach 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 Long Beach 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.
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