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Backflow Testing Services in Highland, California

Finding a reliable backflow testing professional in Highland, California is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 15 backflow testing companies serving Highland and surrounding communities including San Bernardino, Redlands, Colton.

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 Highland 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 Highland 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.

15 listed providers

Services:
Ballard Plumbing Heating & Air Conditioning backflow testing
3 mi

Ballard Plumbing Heating & Air Conditioning

4.9(2,297)

San Bernardino, CA · 3 mi

Backflow Testing

I like Brent he’s funny easy going I felt comfortable with him. He didn’t make me feel pressured into signing anything. If I didn’t understand something he explained it very well. I met Jose he took…

Read more on Google
Website
Basic Backflow backflow testing
Testing Verified
3 mi

Basic Backflow

3.9(12)

Testing Verified · San Bernardino, CA · 3 mi

Backflow TestingPreventer InstallationPreventer Repair
Website
Big Mike's Rooter & Plumbing Company, Inc. backflow testing
5 mi

Big Mike's Rooter & Plumbing Company, Inc.

4.2(95)

San Bernardino, CA · 5 mi

Backflow TestingCommercial

I was told it was going to cost approximately $1000 to replace the shower valve. Big Mike’s came out and found that when the previous plumber changed the stems, he did not replace the seats in the…

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Website
Mr. Rooter Plumbing of San Bernardino backflow testing
8 mi

Mr. Rooter Plumbing of San Bernardino

4.8(1,356)

Colton, CA · 8 mi

Backflow Testing

Our 20+ year old water heater died on us and had to be immediately replaced. I contacted at least 7 plumbing companies and Mr. Rooter was the only one who had same day availability. Also, the rep…

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Website
Pro Backflow Testing Services backflow testing
Testing Verified
9 mi

Pro Backflow Testing Services

5.0(4)

Testing Verified · Rialto, CA · 9 mi

Backflow Testing
Website
Ferguson Waterworks backflow testing
12 mi

Ferguson Waterworks

No reviews yet

Riverside, CA · 12 mi

ResidentialEmergency ServiceFree Estimates
Website
LeBlanc Backflow Service backflow testing
Testing Verified
13 mi

LeBlanc Backflow Service

No reviews yet

Testing Verified · Moreno Valley, CA · 13 mi

Backflow TestingPreventer Repair
Website
Rossman Plumbing backflow testing
13 mi

Rossman Plumbing

4.7(148)

Riverside, CA · 13 mi

Emergency Service
Website
Dependable Plumber Inc backflow testing
14 mi

Dependable Plumber Inc

No reviews yet

Moreno Valley, CA · 14 mi

CommercialEmergency ServiceSame Day Service
Website
NIR Plumbing & Air Conditioning backflow testing
Testing Verified
14 mi

NIR Plumbing & Air Conditioning

4.8(161)

Testing Verified · Riverside, CA · 14 mi

Backflow Testing
Website
Mr. Rooter Plumbing of The Inland Empire backflow testing
16 mi

Mr. Rooter Plumbing of The Inland Empire

4.8(589)

Fontana, CA · 16 mi

Backflow Testing

I recently had a shower valve body replacement done by Hector from Mr. Rooter, and the experience was outstanding. The original valve was seized, and a simple cartridge replacement wasn’t possible…

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Website
Roto-Rooter Plumbing & Water Cleanup backflow testing
16 mi

Roto-Rooter Plumbing & Water Cleanup

No reviews yet

Riverside, CA · 16 mi

CommercialResidentialEmergency Service
Website
Righty Tighty Plumbing Inc. backflow testing
20 mi

Righty Tighty Plumbing Inc.

No reviews yet

Riverside, CA · 20 mi

CommercialResidential
Website
Jim & Sons Plumbing & Rooter backflow testing
Testing Verified
20 mi

Jim & Sons Plumbing & Rooter

5.0(760)

Testing Verified · Riverside, CA · 20 mi

Backflow TestingCommercialEmergency Service
Website
First Class Plumbing & AC backflow testing
20 mi

First Class Plumbing & AC

4.9(810)

Riverside, CA · 20 mi

CommercialEmergency Service
Website

Frequently Asked Questions About Backflow Testing in Highland

Many certified backflow testers in Highland 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 Highland, 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 Highland 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 Highland 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 Highland 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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