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Commercial backflow issues can affect water quality and lead to compliance violations. When your backflow prevention device needs testing, recertification, or repair, Tennessee Standard Plumbing provides dependable commercial backflow testing and certification services for Knoxville businesses. Our licensed team helps commercial properties maintain safe water systems and meet required standards.
We serve restaurants, medical offices, schools, production facilities, retail centers, and multi-tenant buildings across Knoxville. This experience allows us to test, repair, and certify a wide range of commercial backflow assemblies.
If your device is due for annual commercial backflow testing and certification, or if it recently failed a test, our team is ready to help. Contact us today!




Commercial buildings rely on clean, reliable water systems to support heavy daily use. When a backflow device stops working properly, even slight pressure changes can allow contaminants into your water supply. For Knoxville facilities that operate long hours, this can quickly lead to health concerns, code violations, and costly disruptions.
Professional testing confirms that valves, assemblies, and pressure zones are working as intended and meet local compliance standards. Licensed commercial plumbers know how to check device performance, identify issues, and complete certification required by Knoxville plumbing codes.
This helps your facility prevent contamination problems and maintain dependable, long-term water system safety.

Backflow prevention devices often begin to fail before the problem is obvious. Your commercial building may need commercial backflow testing and certification if you notice:






The sooner these issues are addressed, the easier they are to resolve and the less disruption your business will experience.

Commercial water systems rely on properly functioning backflow prevention devices to keep drinking water safe. Tennessee Standard Plumbing uses modern testing equipment and proven repair methods to deliver accurate commercial backflow testing and certification services with minimal disruption to your operations.
Whether your business requires annual certification, follow-up repairs, or evaluation of a newly installed commercial backflow device, our approach supports safety, compliance, and dependable system performance.
Hiring licensed professionals for commercial backflow testing and certification helps protect your business, maintain safe water quality, and reduce compliance risks. Knoxville commercial properties benefit from:
Commercial backflow testing and certification services in Knoxville from Tennessee Standard Plumbing help maintain a safe, compliant, and reliable water system for your building.



The plumber who came out to our home, William Gough, was personable, professional, and knowledgeable. He talked us through the repair every step of the way. We will definitely call Tennessee Standard Plumbing for any further needs.
We contacted Tennessee Standard to replace the drain pipes in our home. When they came out to perform the replacement they also checked our main sewer line, which was also in need of replacing. Patrick was able to immediately work up an estimate for the mainline repair and was able to fix…
We had multiple plumbing issues and Patrick Bordine was highly recommended. Not only did Patrick fix our issues, he shared his knowledge and provided multiple options. Since moving to TN and trying multiple plumbers, we have definitely found our “go to” plumber! Tennessee Standard and Patrick Bordine proved to be reliable and knowledgeable.
Had an overall great and professional experience from first call to get scheduled all the way to the end in getting our kitchen draining issue resolved. Will definitely use them again and would refer them to anyone.
Most commercial backflow prevention devices are required to be tested once a year to meet local and state plumbing regulations. Annual testing helps confirm that the device is working correctly and protecting the building’s clean water supply.
Commercial backflow testing must be performed by a licensed plumber or a certified backflow tester. These professionals use approved testing equipment and follow the standards required for commercial backflow certification.
If a commercial backflow device does not pass, a licensed technician identifies the cause and performs the necessary repairs. Once the device is functioning properly, it is retested so it can be certified in compliance with local requirements.
Commercial buildings use backflow prevention devices to stop contaminated water from entering the clean water supply. These devices are required in facilities where changes in water pressure or specialized equipment could create a risk of backflow.
Commercial backflow testing generally takes less than an hour for most devices. The timeframe can vary based on the type of backflow assembly and the number of devices being tested at the property.