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Backflow Testing Services in Knoxville, Tennessee

Finding a reliable backflow testing professional in Knoxville, Tennessee is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 19 backflow testing companies serving Knoxville and surrounding communities including Maryville, Oak Ridge, Morristown.

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 Knoxville area.

Most water authorities in Tennessee 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 Knoxville 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.

19 listed providers

Services:
Locke Plumbing Company, Inc backflow testing
1 mi

Locke Plumbing Company, Inc

4.7(106)

Knoxville, TN · 1 mi

Website
Engert LLC backflow testing
1 mi

Engert LLC

4.7(18)

Knoxville, TN · 1 mi

Emergency Service
Website
DM
3 mi

Del-Air Mechanical

3.8(24)

Knoxville, TN · 3 mi

Backflow TestingCommercialFree Estimates

Repaired our back flow device fast and properly. Employee was friendly and helped explain what needed to be done very well. Will gladly call them again next time we need work.

Read more on Google
Website
Scott's Plumbing Company backflow testing
Testing Verified
4 mi

Scott's Plumbing Company

4.6(180)

Testing Verified · Knoxville, TN · 4 mi

Backflow TestingCommercialResidential

We chose Scott's to replace all the drain pipes in our crawlspace 3 years ago. They quoted the job with replacing the pipes up to the fixtures as I requested. Well, the workers who did the job…

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Website
Pipe Wrench Plumbing, Heating & Cooling backflow testing
Testing Verified
4 mi

Pipe Wrench Plumbing, Heating & Cooling

4.8(5,711)

Testing Verified · Knoxville, TN · 4 mi

Backflow TestingEmergency ServiceSame-Day Service

My toilet was clogged so I started to call around to get estimates. The first 2 places I called said they charge $69 and $79 just to come out and give estimates. Then if I want to proceed with the…

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Website
Hiller Plumbing, Heating, Cooling & Electrical backflow testing
5 mi

Hiller Plumbing, Heating, Cooling & Electrical

4.9(5,148)

Knoxville, TN · 5 mi

Backflow TestingCommercialFree Estimates

Using Hiller has been a true blessing. We moved into a home with very little lighting so we wanted to add in wafer lights throughout the house. Bryan was the project manager for the job and he had…

Read more on Google
Website
Ferguson Plumbing Supply backflow testing
5 mi

Ferguson Plumbing Supply

4.6(61)

Knoxville, TN · 5 mi

I am a women who likes to complete as many home repairs on my own as I can. This means that I'm often on YouTube learning how to do something. In the past, I have faced issues with men at plumbing…

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Website
CB
Testing Verified
6 mi

Cedar Bluff Plumbing

3.9(71)

Testing Verified · Knoxville, TN · 6 mi

CommercialResidential

I contracted with CBP to install a new tankless water heater at my home. My experience with them started with a great visit from both the plumber assigned to the job and their lead in the tankless…

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Website
TS
Testing Verified
6 mi

Tennessee Standard Plumbing

4.9(2,062)

Testing Verified · Knoxville, TN · 6 mi

ResidentialEmergency ServiceSame-Day Service

I called Tennessee standard after first getting estimates from two Other plumbing companies for a house that we had recently purchased as an investment property. I wasn’t feeling confident in what…

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Website
SP
7 mi

SMK Plumbing & Electric

5.0(197)

Knoxville, TN · 7 mi

Backflow Testing

While working at home this afternoon, I was alarmed to discover the sink in my garage overflowing with a bubbling, fetid morass of the most putrid filth imaginable. As it happened, the waste water…

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Website
RP
8 mi

Roto-Rooter Plumbing & Drain Services

4.4(161)

Knoxville, TN · 8 mi

Backflow TestingCommercialResidential

We had an emergency leak at our house. Discovered when we received monthly utility. We reached out to 3 plumbing companies to find someone who could see us immediately. Roto rooter was the only one…

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Website
Backflow Specialty Co Inc backflow testing
Testing Verified
8 mi

Backflow Specialty Co Inc

4.4(31)

Testing Verified · Powell, TN · 8 mi

Backflow Specialty is a WONDERFUL Christian, family owned and operated business with high standards for themselves and high expectations from their customers. There is no doubt in my mind that if I…

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Website
Bizzy B Plumbing backflow testing
9 mi

Bizzy B Plumbing

4.9(112)

Knoxville, TN · 9 mi

Emergency ServiceSame Day Service
Website
Advanced Heat AC & Plumbing backflow testing
11 mi

Advanced Heat AC & Plumbing

4.8(1,437)

Knoxville, TN · 11 mi

CommercialResidentialEmergency Service

So my experience at first starting out really bad, but between Brendan and Dominick correcting the situation I decided they deserve a 5 star review as mistakes do happen. I had a hot water heater…

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Website
Mr. Rooter Plumbing of Knoxville backflow testing
12 mi

Mr. Rooter Plumbing of Knoxville

4.9(119)

Knoxville, TN · 12 mi

Backflow TestingResidential

Our water main to the street had ruptured and, unbeknownst to us, had filled our crawlspace with water. We already had been without water for a day and a half, because of a larger water main break in…

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Website
John H Coleman Co backflow testing
Testing Verified
12 mi

John H Coleman Co

4.9(925)

Testing Verified · Knoxville, TN · 12 mi

Backflow Testing

I had both of my HVAC units replaced by The John H. Coleman Company in 2022, and I couldn't have been happier with their service. From the start, their team was professional, knowledgeable, and…

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Website
TS
Testing Verified
13 mi

Tennessee Standard Plumbing and Drain

5.0(566)

Testing Verified · Knoxville, TN · 13 mi

ResidentialEmergency ServiceSame-Day Service

Amazing quality, knowledge, skills, and ability to bring peace to my pipes the same day! Thanks to Mike Weeks and his assistant, Tyler! The team did an amazing job today assessing and addressing my…

Read more on Google
Website
Quality Plumbing, Heating, Cooling & Electrical backflow testing
Testing Verified
17 mi

Quality Plumbing, Heating, Cooling & Electrical

4.9(3,024)

Testing Verified · Kodak, TN · 17 mi

Backflow TestingCommercialEmergency Service
Website
Waterworks Irrigation Services, Inc. backflow testing
Testing Verified
17 mi

Waterworks Irrigation Services, Inc.

4.3(16)

Testing Verified · Maryville, TN · 17 mi

Backflow Testing
Website

Frequently Asked Questions About Backflow Testing in Knoxville

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 Tennessee 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 Knoxville 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 Knoxville 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 Knoxville, Tennessee 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 Knoxville area.

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