Backflow Testing Services in Washington, Michigan
Finding a reliable backflow testing professional in Washington, Michigan is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 15 backflow testing companies serving Washington and surrounding communities including Rochester Hills, Sterling Heights, Troy.
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 Washington area.
Most water authorities in Michigan 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 Washington 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

Aaron Swift Plumbing & Sewer Service, Inc.
Testing Verified · Washington, MI · < 1 mi
Stadler Plumbing & Heating
Testing Verified · Shelby Township, MI · 8 mi

Mainline Plumbing & Sewer Inc
Shelby Township, MI · 8 mi


Macomb Mechanical, Inc.
Testing Verified · Sterling Heights, MI · 12 mi

Putman & Sons Plumbing Inc
Testing Verified · Rochester Hills, MI · 12 mi
Capital Plumbing
Testing Verified · Sterling Heights, MI · 17 mi

Universal Plumbing and Sewer
Testing Verified · Clinton Township, MI · 17 mi

Drain Masters Rooter & Plumbing
Sterling Heights, MI · 17 mi

Paul C. Scott & Sons Plumbing, Inc.
Testing Verified · Troy, MI · 18 mi

Emergency Drain and Plumbing, LLC
Troy, MI · 18 mi
Precision Plumbing
Testing Verified · Troy, MI · 18 mi
Bob Downey Plumbing Co. Inc.
Testing Verified · Fraser, MI · 18 mi

Waterdogs Plumbing
Testing Verified · Casco, MI · 19 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Washington
Backflow testing in Washington, Michigan 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 Washington 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 Washington 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 Michigan require cross-connection control programs for commercial properties and irrigation systems.
Many municipalities in Michigan require annual backflow testing for commercial and residential properties with backflow prevention devices. Your local water authority in Washington can confirm the exact testing schedule and deadlines for your area. Failing to test on time may result in fines or water service interruption.
Some certified testers near Washington offer same-day or emergency scheduling for urgent situations such as a failed device, a compliance deadline, or a new construction inspection. Check individual provider listings above for availability, or request a quote to find a tester who can accommodate your schedule.
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