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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

Services:
Jim Wagner Plumbing, Inc. backflow testing
Testing Verified
3 mi

Jim Wagner Plumbing, Inc.

4.7(675)

Testing Verified · Lombard, IL · 3 mi

Backflow TestingCommercialEmergency Service
Website
Complete Backflow Services backflow testing
7 mi

Complete Backflow Services

5.0(1)

Carol Stream, IL · 7 mi

Website
Jim Dhamer Plumbing and Sewer Inc. backflow testing
7 mi

Jim Dhamer Plumbing and Sewer Inc.

4.6(180)

Lisle, IL · 7 mi

Emergency Service
Website
Roto-Rooter Plumbing & Water Cleanup backflow testing
Testing Verified
8 mi

Roto-Rooter Plumbing & Water Cleanup

4.8(1,514)

Testing Verified · Naperville, IL · 8 mi

Backflow TestingEmergency ServiceSame Day Service
Website
Body Plumbing Inc. backflow testing
10 mi

Body Plumbing Inc.

5.0(3)

Elk Grove Village, IL · 10 mi

Emergency Service
Website
D. E. Mathieu Plumbing, Sewer & Water backflow testing
Testing Verified
10 mi

D. E. Mathieu Plumbing, Sewer & Water

5.0(38)

Testing Verified · Warrenville, IL · 10 mi

Backflow TestingPreventer RepairCommercial
Website
Marquise Plumbing and Backflow backflow testing
Testing Verified
10 mi

Marquise Plumbing and Backflow

4.9(32)

Testing Verified · Naperville, IL · 10 mi

Backflow TestingRPZ Testing
Website
Northern Illinois Backflow Inc backflow testing
Testing Verified
11 mi

Northern Illinois Backflow Inc

1.0(1)

Testing Verified · West Chicago, IL · 11 mi

Backflow TestingCross-Connection ControlEmergency Service
Website
Fire Protection Parts backflow testing
11 mi

Fire Protection Parts

5.0(13)

Naperville, IL · 11 mi

DCVA TestingSame Day Service
Website
Expert Plumbing Heating & Electrical backflow testing
Testing Verified
12 mi

Expert Plumbing Heating & Electrical

4.7(154)

Testing Verified · Naperville, IL · 12 mi

Backflow TestingEmergency Service
Website
Chicagoland Quality Plumbing backflow testing
12 mi

Chicagoland Quality Plumbing

4.9(192)

Chicago, IL · 12 mi

Backflow TestingCommercialResidential
Website
Chicago Home Plumber Tech PSD backflow testing
Testing Verified
13 mi

Chicago Home Plumber Tech PSD

No reviews yet

Testing Verified · Chicago, IL · 13 mi

Backflow TestingCommercialResidential
Website
Loves Plumbing and Sewer backflow testing
14 mi

Loves Plumbing and Sewer

4.8(61)

Chicago, IL · 14 mi

CommercialResidentialEmergency Service
Website
Valley Fire Protection & Plumbing backflow testing
Testing Verified
14 mi

Valley Fire Protection & Plumbing

4.4(35)

Testing Verified · St. Charles, IL · 14 mi

Backflow TestingCommercialResidential
Website
Blue Whale Backflow, Plumbing, & Excavating backflow testing
Testing Verified
15 mi

Blue Whale Backflow, Plumbing, & Excavating

4.5(46)

Testing Verified · Batavia, IL · 15 mi

Backflow TestingCommercialEmergency Service
Website
Absolutely Clear Pipes-Plumbing & Sewer Services backflow testing
15 mi

Absolutely Clear Pipes-Plumbing & Sewer Services

5.0(3)

Chicago, IL · 15 mi

CommercialEmergency ServiceSame Day Service
Website
Ashland Plumbing & Heating backflow testing
Testing Verified
16 mi

Ashland Plumbing & Heating

No reviews yet

Testing Verified · Chicago, IL · 16 mi

Backflow TestingCommercialResidential
Website
Bubba, Wayne & Tim Sewer Service Inc backflow testing
16 mi

Bubba, Wayne & Tim Sewer Service Inc

No reviews yet

Chicago, IL · 16 mi

Emergency ServiceSame Day Service
Website
Wiz Plumbing Inc. backflow testing
16 mi

Wiz Plumbing Inc.

4.9(281)

Naperville, IL · 16 mi

RPZ TestingPreventer InstallationCommercial
Website
Fox Valley Plumbing & Backflow backflow testing
Testing Verified
16 mi

Fox Valley Plumbing & Backflow

4.8(125)

Testing Verified · Elgin, IL · 16 mi

Backflow TestingPreventer RepairCommercial
Website
DRF Water Heating Solutions backflow testing
Testing Verified
18 mi

DRF Water Heating Solutions

4.7(1,336)

Testing Verified · Plainfield, IL · 18 mi

Backflow TestingCommercialEmergency Service
Website
Elite Sewer & Drain Inc. backflow testing
Testing Verified
18 mi

Elite Sewer & Drain Inc.

5.0(242)

Testing Verified · Skokie, IL · 18 mi

Backflow TestingRPZ TestingEmergency Service
Website
Plumbers 911 Chicago backflow testing
Testing Verified
18 mi

Plumbers 911 Chicago

4.6(20)

Testing Verified · Chicago, IL · 18 mi

Backflow TestingCommercialResidential
Website
Parks' Plumbing & Sewer, Inc. backflow testing
18 mi

Parks' Plumbing & Sewer, Inc.

4.7(164)

Skokie, IL · 18 mi

Preventer InstallationResidentialEmergency Service
Website
Residential Plumbing backflow testing
Testing Verified
19 mi

Residential Plumbing

4.8(664)

Testing Verified · Oswego, IL · 19 mi

Backflow TestingResidentialSame Day Service
Website
Roto-Rooter Plumbing & Water Cleanup backflow testing
19 mi

Roto-Rooter Plumbing & Water Cleanup

No reviews yet

Chicago, IL · 19 mi

CommercialResidentialEmergency Service
Website
Brothers Plumbing backflow testing
19 mi

Brothers Plumbing

4.6(44)

Evanston, IL · 19 mi

CommercialEmergency ServiceSame Day Service
Website

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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