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…

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R.G.

R.G.09/19/2024

Giving five stars to Brandon and his partner for coming today, 3 days after Stephen installed new electrical panel and left wires exposed that State Inspector also saw yesterday and did not approve…

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C.O.

C.O.04/17/2025

Jacob and Quez did a phenomenal job! I bought a new hot tub and needed an electrician to install the 220v electrical box and wire up the tub. They did a great job. They did a great job running the…

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A.P.

A.P.12/15/2025

John was amazing! He responded to our call quickly. He was patient and waited outside in the cold for us to open the door. We both work from home, so we were on calls when he arrived. He immediately…

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Backflow Testing in Knoxville, Tennessee

Hiller Plumbing, Heating, Cooling & Electrical provides professional backflow prevention testing services in Knoxville, Tennessee. Annual backflow testing is required by most water utilities to protect public water supplies from contamination through cross-connection control compliance. Their services include commercial, free estimates, backflow testing, serving both residential and commercial properties throughout the Knoxville area.

Whether you need a routine RPZ valve inspection, backflow prevention device testing, or a certified tester to file compliance reports with your local water authority,Hiller Plumbing, Heating, Cooling & Electrical can help. Homeowners, HOAs, and property managers can request a free quote using the form on this page.