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Backflow Testing Services in Moreno Valley, California

Finding a reliable backflow testing professional in Moreno Valley, California is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 21 backflow testing companies serving Moreno Valley and surrounding communities including Redlands, Riverside, 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 Moreno Valley 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 Moreno Valley 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.

21 listed providers

Services:
Dependable Plumber Inc backflow testing
2 mi

Dependable Plumber Inc

No reviews yet

Moreno Valley, CA · 2 mi

CommercialEmergency ServiceSame Day Service
Website
LeBlanc Backflow Service backflow testing
Testing Verified
3 mi

LeBlanc Backflow Service

No reviews yet

Testing Verified · Moreno Valley, CA · 3 mi

Backflow TestingPreventer Repair
Website
Ferguson Waterworks backflow testing
8 mi

Ferguson Waterworks

No reviews yet

Riverside, CA · 8 mi

ResidentialEmergency ServiceFree Estimates
Website
Rossman Plumbing backflow testing
9 mi

Rossman Plumbing

4.7(148)

Riverside, CA · 9 mi

Emergency Service
Website
NIR Plumbing & Air Conditioning backflow testing
Testing Verified
9 mi

NIR Plumbing & Air Conditioning

4.8(161)

Testing Verified · Riverside, CA · 9 mi

Backflow Testing
Website
Roto-Rooter Plumbing & Water Cleanup backflow testing
9 mi

Roto-Rooter Plumbing & Water Cleanup

No reviews yet

Riverside, CA · 9 mi

CommercialResidentialEmergency Service
Website
Mr. Rooter Plumbing of San Bernardino backflow testing
11 mi

Mr. Rooter Plumbing of San Bernardino

4.8(1,356)

Colton, CA · 11 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…

Read more on Google
Website
Big Mike's Rooter & Plumbing Company, Inc. backflow testing
12 mi

Big Mike's Rooter & Plumbing Company, Inc.

4.2(95)

San Bernardino, CA · 12 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…

Read more on Google
Website
First Class Plumbing & AC backflow testing
12 mi

First Class Plumbing & AC

4.9(810)

Riverside, CA · 12 mi

CommercialEmergency Service
Website
Righty Tighty Plumbing Inc. backflow testing
12 mi

Righty Tighty Plumbing Inc.

No reviews yet

Riverside, CA · 12 mi

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

Jim & Sons Plumbing & Rooter

5.0(760)

Testing Verified · Riverside, CA · 12 mi

Backflow TestingCommercialEmergency Service
Website
Ballard Plumbing Heating & Air Conditioning backflow testing
13 mi

Ballard Plumbing Heating & Air Conditioning

4.9(2,297)

San Bernardino, CA · 13 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
Campbell Family Plumbing & Electric backflow testing
13 mi

Campbell Family Plumbing & Electric

4.9(87)

Riverside, CA · 13 mi

CommercialEmergency ServiceSame Day Service
Website
Pro Backflow Testing Services backflow testing
Testing Verified
14 mi

Pro Backflow Testing Services

5.0(4)

Testing Verified · Rialto, CA · 14 mi

Backflow Testing
Website
E.R. Block Plumbing Inc. backflow testing
15 mi

E.R. Block Plumbing Inc.

No reviews yet

Riverside, CA · 15 mi

Preventer InstallationPreventer RepairCommercial
Website
Basic Backflow backflow testing
Testing Verified
15 mi

Basic Backflow

3.9(12)

Testing Verified · San Bernardino, CA · 15 mi

Backflow TestingPreventer InstallationPreventer Repair
Website
Southern California Backflow backflow testing
Testing Verified
15 mi

Southern California Backflow

5.0(5)

Testing Verified · Riverside, CA · 15 mi

Backflow TestingPreventer InstallationPreventer Repair
Website
Amazing Force Plumbing & Backflow LLC backflow testing
18 mi

Amazing Force Plumbing & Backflow LLC

5.0(322)

Corona, CA · 18 mi

Backflow TestingPreventer InstallationPreventer Repair

Where do I begin......... Amazing Force Plumbing has provided excellent service for my rental properties as well as my home for the last several years. Kenneth is the owner and he takes pride in…

Read more on Google
Website
Sentry Backflow and Utility Theft Prevention by D&M backflow testing
18 mi

Sentry Backflow and Utility Theft Prevention by D&M

5.0(2)

Lake Elsinore, CA · 18 mi

Preventer RepairEmergency Service
Website
Cal Valve – Backflow Supply backflow testing
Testing Verified
19 mi

Cal Valve – Backflow Supply

5.0(23)

Testing Verified · Lake Elsinore, CA · 19 mi

Cross-Connection Control

Recently took Ron’s 1 week backflow crash course and found it to be excellent! The information presented to the class was easy to understand and take in. Most in the class weren’t even in the water…

Read more on Google
Website
Fullerton Backflow backflow testing
Testing Verified
19 mi

Fullerton Backflow

No reviews yet

Testing Verified · Lake Elsinore, CA · 19 mi

Backflow TestingPreventer InstallationPreventer Repair
Website

Frequently Asked Questions About Backflow Testing in Moreno Valley

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