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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A.C.

A.C.03/12/2025

Beyond impressed with the exceptional and outstanding service today from John H Coleman Electric. I rent and my landlord requested a service visit for my unit. This was just a check up to ensure all…

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T.W.

T.W.01/11/2026

I have an annual contract with John Coleman company for maintaining my HVAC system. I just had my winter inspection and the inspector found that the capacitor for the motor that runs the fan was…

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S.R.

S.R.07/26/2025

Look no further. This company is absolutely outstanding. My AC went out yesterday, the house was up to 84 degrees and when I called in the early afternoon, they immediately scheduled me the for the…

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Backflow Testing in Knoxville, Tennessee

John H Coleman Co 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 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,John H Coleman Co can help. Homeowners, HOAs, and property managers can request a free quote using the form on this page.