Backflow Testing Services in Lombard, Illinois
Finding a reliable backflow testing professional in Lombard, Illinois is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 28 backflow testing companies serving Lombard and surrounding communities including Glen Ellyn, Addison, Elmhurst.
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 Lombard area.
Most water authorities in Illinois 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 Lombard 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.
28 listed providers

Jim Wagner Plumbing, Inc.
Testing Verified · Lombard, IL · 3 mi
Roto-Rooter Plumbing & Water Cleanup
Testing Verified · Naperville, IL · 8 mi

D. E. Mathieu Plumbing, Sewer & Water
Testing Verified · Warrenville, IL · 10 mi
Marquise Plumbing and Backflow
Testing Verified · Naperville, IL · 10 mi

Northern Illinois Backflow Inc
Testing Verified · West Chicago, IL · 11 mi

Expert Plumbing Heating & Electrical
Testing Verified · Naperville, IL · 12 mi

Chicago Home Plumber Tech PSD
No reviews yet
Testing Verified · Chicago, IL · 13 mi
Valley Fire Protection & Plumbing
Testing Verified · St. Charles, IL · 14 mi

Blue Whale Backflow, Plumbing, & Excavating
Testing Verified · Batavia, IL · 15 mi
Absolutely Clear Pipes-Plumbing & Sewer Services
Chicago, IL · 15 mi

Ashland Plumbing & Heating
No reviews yet
Testing Verified · Chicago, IL · 16 mi

Bubba, Wayne & Tim Sewer Service Inc
No reviews yet
Chicago, IL · 16 mi

Fox Valley Plumbing & Backflow
Testing Verified · Elgin, IL · 16 mi

DRF Water Heating Solutions
Testing Verified · Plainfield, IL · 18 mi
Elite Sewer & Drain Inc.
Testing Verified · Skokie, IL · 18 mi

Plumbers 911 Chicago
Testing Verified · Chicago, IL · 18 mi

Parks' Plumbing & Sewer, Inc.
Skokie, IL · 18 mi

Residential Plumbing
Testing Verified · Oswego, IL · 19 mi
Roto-Rooter Plumbing & Water Cleanup
No reviews yet
Chicago, IL · 19 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Lombard
Most jurisdictions in Illinois 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 Lombard 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 Lombard 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 Lombard, Illinois 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 Lombard 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 Lombard 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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