Knoxville Radon Testing | Nashville Radon Testing

What is Radon?

In 1900, radon became the fifth radioactive element discovered. Radon is a naturally occurring element that is produced by the radioactive decay of radium 226, which can be found in many types of ores, stones, and rocks, all common to the terrain of Tennessee.

Why is radon a Problem?

Radon gas was not a known problem for homeowners until 1985. An engineer working at a nuclear power plant was found to be contaminated by radon. Stringent testing of employees at the entrance to the facility identified the problem and then found the source.

Radon is considered dangerous and life-threatening. Radon is estimated to kill 20,000 or more people per year.

In 2005, the U.S. Attorney General stated that “Indoor radon gas is the second-leading cause of lung cancer in the United States and breathing it over prolonged periods can present a significant health risk to families all over the country. It’s important to know that this threat is completely preventable. Radon can be detected with a simple radon test and fixed through well-established venting techniques.”

The U.S. Surgeon General, Environmental Protection Agency, and the American Cancer Society all recommend that every home be tested for radon. Our advice: call us for radon testing at your home!

Is radon a problem in Tennessee?

Yes. Most home buyers are still unaware of the danger of radon even though it is known to be present in every county in Tennessee. Eastern and Middle Tennessee are the two regions the EPA considers radon to be the highest threat to homeowners.

According to the EPA, the counties where we live, Davidson, Wilson, Rutherford, Knox, Loudon, Anderson, Blount, Roane, Union, Grainger, Jefferson, and others, are the most likely to have radon gas exposure above 4 pCi/L, which is dangerous and can be life-threatening.

“All homes should test for radon, regardless of their geographic location or zone designation.”
– Environmental Protection Agency

What do the colors on the map mean?


Zone 1
counties have a predicted average indoor radon screening level greater than 4 pCi/L (picocuries per liter)

Highest Potential


Zone 2
counties have a predicted average indoor radon screening level between 2 and 4 pCi/L

Moderate Potential


Zone 3
counties have a predicted average indoor radon screening level less than 2 pCi/L

Low Potential

Any reading of 4 pCi/L and above can be deadly. Please don’t ignore this very real threat.

Do I Need a Radon Test?

The EPA states that 1 out of every 15 homes in America has a radon problem. In some Tennessee counties that number is as high as 7 out of 10. The EPA recommends EVERY home in America be tested for radon.

If you are a homeowner in Nashville or Knoxville, Tennessee, and you don’t know the radon levels in your home, the obvious answer is that you need a radon test from our home inspection company. 1st Choice Home Inspections will be happy to perform a radon test for you. Our home inspectors use Radstar professional radon measurement equipment.

If after testing, the levels are good, your inspector will provide a written warranty and guarantee that radon levels are below the recommended EPA action level. When results are below the action level, you are protected by the industry’s only 120-day written guarantee, which actually pays toward the cost of mitigation.

Your health and the health of your family are too important to take chances with anything other than a Certified Radon Report.

How much does a radon test cost in Tennessee?

Depending on the location of the home and other factors, radon testing costs between $150-$200.

Nashville Radon Testing (615) 538-7707 | Knoxville Radon Testing (865) 938-7575

Schedule an Appointment