Backflow Testing Services in Farmington, Michigan
Finding a reliable backflow testing professional in Farmington, Michigan is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 33 backflow testing companies serving Farmington and surrounding communities including Farmington Hills, Livonia, Redford.
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 Farmington 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 Farmington 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.
33 listed providers
Roto-Rooter Plumbing & Water Cleanup
Livonia, MI · 4 mi

Z Plumberz of North America
Testing Verified · Livonia, MI · 5 mi
Jermor Plumbing & Heating
Testing Verified · Detroit, MI · 5 mi

Lenox Plumbing, LLC
Testing Verified · Canton Township, MI · 8 mi

Preventative Backflow
Testing Verified · Canton Township, MI · 9 mi

Cregger Plumbing, Heating & Cooling
Testing Verified · Ferndale, MI · 13 mi

WaterWork Plumbing
Testing Verified · Ferndale, MI · 13 mi
Nelson Bros. Sewer & Plumbing
Testing Verified · Royal Oak, MI · 13 mi

DJ MURRAY PLUMBING INC.
Testing Verified · Royal Oak, MI · 13 mi

WaterWork Plumbing
Testing Verified · Hazel Park, MI · 13 mi
Precision Plumbing
Testing Verified · Troy, MI · 14 mi

FLAME Heating, Cooling, Plumbing, Electrical
Warren, MI · 15 mi

Paul C. Scott & Sons Plumbing, Inc.
Testing Verified · Troy, MI · 16 mi

Emergency Drain and Plumbing, LLC
Troy, MI · 16 mi

Michigan Backflow Institute
Testing Verified · Waterford Township, MI · 17 mi

Backflow Prevention Services, LLC
Waterford Township, MI · 17 mi

Putman & Sons Plumbing Inc
Testing Verified · Rochester Hills, MI · 18 mi

Drain Masters Rooter & Plumbing
Sterling Heights, MI · 18 mi
Capital Plumbing
Testing Verified · Sterling Heights, MI · 18 mi
Roto-Rooter Plumbing & Water Cleanup
Detroit, MI · 18 mi
Armstrong Plumbing & Sewer Service
Warren, MI · 19 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Farmington
Most jurisdictions in Michigan 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 Farmington 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 Farmington 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 Farmington, 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 Farmington 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 Farmington 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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