Same-Day Service Available
Need a Plumber in Knoxville? We’re Ready to Help!
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 the 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.

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.


“ I feel comfortable calling and sending Tennessee Standard in my house to fix a problem. He respected my home just like I do. To us, Tennessee Standard is the gold standard.”
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. We also offer residential backflow prevention services.
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.
We list available promotions on our Specials page. Any current offers that apply to backflow testing or certification will be shown there and should be referenced when scheduling.
Financing options for qualifying commercial services, including backflow-related work, can be found on our Financing page. Availability and terms vary based on project scope and approval.
To arrange backflow testing or certification, reach out by phone or via the form on our contact form. Once we receive your request, our team will follow up with details on timing and requirements.