Backflow Testing Services in San Antonio, Texas
Finding a reliable backflow testing professional in San Antonio, Texas is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 29 backflow testing companies serving San Antonio and surrounding communities including Schertz, Cibolo, Northcliff.
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 San Antonio area.
Most water authorities in Texas 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 San Antonio 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.
29 listed providers

Mai Vu Plumbing
Testing Verified · San Antonio, TX · 4 mi
George Plumbing Co.
Testing Verified · San Antonio, TX · 5 mi

1 Affordable Backflow Testing and Plumbing Services
Testing Verified · San Antonio, TX · 7 mi

American Backflow Products (San Antonio)
No reviews yet
Testing Verified · San Antonio, TX · 8 mi
PlumbSmart
Testing Verified · San Antonio, TX · 8 mi

Casanova Plumbing
Testing Verified · San Antonio, TX · 8 mi
Ability Backflow
Testing Verified · Windcrest, TX · 9 mi

Diamond Plumbing Inc
Testing Verified · San Antonio, TX · 9 mi
Longoria Plumbing, Drain, Tunneling & Foundation Services
San Antonio, TX · 9 mi
A&W Irrigation Service
Testing Verified · San Antonio, TX · 10 mi
Roto-Rooter Plumbing & Water Cleanup
No reviews yet
San Antonio, TX · 10 mi

BAVCO - Backflow Repair Parts & Backflow Supply
San Antonio, TX · 11 mi
Sprinkler Repair San Antonio
San Antonio, TX · 11 mi
SA Rainmaker LLC
No reviews yet
Testing Verified · San Antonio, TX · 11 mi

Test Gauge & Backflow Supply
Testing Verified · San Antonio, TX · 11 mi
San Antonio Ace
Testing Verified · San Antonio, TX · 12 mi
Roadrunner Plumbing & Air
Testing Verified · San Antonio, TX · 12 mi

Tietze Plumbing, Heating and Air
No reviews yet
Testing Verified · San Antonio, TX · 15 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in San Antonio
Look for testers with active state certification, strong Google reviews, and experience with your type of backflow preventer (PVB, DCVA, or RPZ). Ask whether they file compliance reports with your local water authority and request a written estimate before scheduling. Our directory lists testers near San Antonio with real customer reviews.
RPZ (Reduced Pressure Zone) testing verifies that your reduced pressure backflow preventer is functioning correctly to protect your water supply from contamination. A certified tester uses specialized gauges to measure differential pressures across the assembly. RPZ devices are typically required for high-hazard connections.
Most jurisdictions in Texas 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 San Antonio 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 San Antonio 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.
Nearby Cities in Texas
For Providers
Own a Backflow Testing Business?
Claim your listing to manage your profile, track leads, and get premium placement.



