FBT

Backflow Testing Services in South Gate, California

Finding a reliable backflow testing professional in South Gate, California is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 24 backflow testing companies serving South Gate and surrounding communities including Lynwood, Huntington Park, Florence-Graham.

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 South Gate 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 South Gate 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.

14 listed providers

Services:
Mr Fix It Plumbing backflow testing
Testing Verified
8 mi

Mr Fix It Plumbing

No reviews yet

Testing Verified · Long Beach, CA · 8 mi

Backflow TestingCommercial
Website
CY
Testing Verified
10 mi

Cover Your Brass - Backflow Testing and Backflow Cage Manufacturer

4.8(9)

Testing Verified · Signal Hill, CA · 10 mi

Backflow TestingPreventer InstallationPreventer Repair

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
Website
Atlas Backflow Services - Backflow Testing Los Angeles + Orange County backflow testing
Testing Verified
11 mi

Atlas Backflow Services - Backflow Testing Los Angeles + Orange County

4.9(83)

Testing Verified · Signal Hill, CA · 11 mi

Backflow TestingPreventer RepairCross-Connection Control
Website
Advance Mechanical Contractors backflow testing
Testing Verified
11 mi

Advance Mechanical Contractors

No reviews yet

Testing Verified · Signal Hill, CA · 11 mi

Backflow TestingCommercialResidential
Website
Ferrari Backflow Inc. backflow testing
Testing Verified
11 mi

Ferrari Backflow Inc.

3.0(2)

Testing Verified · Redondo Beach, CA · 11 mi

Backflow TestingPreventer InstallationCross-Connection Control
Website
Pete's Plumbing backflow testing
Testing Verified
12 mi

Pete's Plumbing

No reviews yet

Testing Verified · Signal Hill, CA · 12 mi

Backflow TestingEmergency ServiceSame Day Service
Website
A-A Backflow Testing and Maintenance backflow testing
Testing Verified
12 mi

A-A Backflow Testing and Maintenance

3.0(5)

Testing Verified · Torrance, CA · 12 mi

Backflow TestingCross-Connection Control
Website
Sunset Plumbing backflow testing
Testing Verified
13 mi

Sunset Plumbing

No reviews yet

Testing Verified · Long Beach, CA · 13 mi

Backflow TestingCommercial
Website
H. L. Moe Co., Inc backflow testing
Testing Verified
14 mi

H. L. Moe Co., Inc

4.8(467)

Testing Verified · Glendale, CA · 14 mi

Backflow TestingCommercialResidential
Website
Hydro Backflow backflow testing
15 mi

Hydro Backflow

5.0(2)

Arcadia, CA · 15 mi

Annual Certification FilingCommercialResidential
Website
Los Angeles Plumbing & Backflow backflow testing
Testing Verified
15 mi

Los Angeles Plumbing & Backflow

5.0(3)

Testing Verified · Irwindale, CA · 15 mi

Backflow TestingPreventer InstallationPreventer Repair
Website
Precision Backflow Testing & Repairs backflow testing
Testing Verified
18 mi

Precision Backflow Testing & Repairs

5.0(19)

Testing Verified · La Cañada Flintridge, CA · 18 mi

Backflow TestingPreventer RepairAnnual Certification

Had a great experience with Precision Backflow! I called for information as we were looking for a new backflow testing company-we had a few bad experiences with the company we’d been using. I talked…

Read more on Google
Website
Prevent Backflow & Plumbing Inc. backflow testing
Testing Verified
18 mi

Prevent Backflow & Plumbing Inc.

No reviews yet

Testing Verified · Anaheim, CA · 18 mi

Backflow TestingEmergency Service
Website

Frequently Asked Questions About Backflow Testing in South Gate

Most jurisdictions in California require backflow testers to hold a current certification from an approved training program, typically involving classroom instruction, a hands-on practical exam, and continuing education credits. Some municipalities maintain their own approved-tester lists. Always verify certification before hiring.

Residential tests typically involve a single PVB or DCVA device and are quicker to complete. Commercial properties in South Gate 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 South Gate 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 South Gate, 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 South Gate 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 South Gate 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.

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