Knoxville, TN's Radon Mitigation Specialists

Knoxville falls within EPA's Zone 1 which is the "Highest Potential Zone" for radon risk. Because the zones reflect predicted average levels, the EPA recommends that ALL homes be tested, regardless of zone. (

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National Radon Defense (NRD) is your expert radon testing and mitigation company in Knoxville. Our certified team of radon mitigation contractors goes through extensive training to ensure you receive the best results.

Radon is a dangerous, natural gas that can cause serious, life-threatening effects such as lung cancer with major exposure. A few signs and symptoms include wheezing, chest pain, weight loss, coughing up blood, and persistent cough. Radon testing and mitigation are extremely important to conduct prior to a radon infection. National Radon Defense is proud to have experts in Knoxville to help protect your home’s health and safety.

Get a free estimate today on any of the following services:

Trusted Radon Mitigation System in Knoxville, TN

Our radon mitigation system is specifically made to reduce dangerous levels of radon to a lower and safer amount. Radon has been found trapped at alarming levels in too many homes, but National Radon Defense is here to provide a safe solution. Your local NRD dealer in Knoxville is guaranteed to offer trusted service. You will be provided a free, no-obligation in-home consultation. We will discuss structural layout, aesthetic options, and payment/warranty options.

Knoxville, TN’s Recommended Radon Testing Company

This invisible, odorless gas is extremely dangerous and affects the indoor air you breathe every day. Our professional radon test gives you fast and accurate results. We can provide a Continuous Radon Monitor test for your home. This accurate short-term radon test proves a radon level reading in 48 hours.

Our professional radon testing takes three steps. You first contact your National Radon Defense dealer and schedule two meetings. One meeting will be dedicated to setting up the Continuous Radon Monitor. The second meeting allows the dealer to analyze the data and discuss the results in person with you. The second step allows your dealer to set the monitor in the appropriate location. The last step is to go over the results after 48 hours.

Call us today for a free estimate in Knoxville, TN!

No matter what service you choose to move forward with, we will provide a free estimate and evaluation. All houses should be tested for radon periodically, so don’t miss out! Schedule for your free radon testing or mitigation estimate & inspection in Knoxville, TN today!

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Recent job requests for radon mitigation in Knoxville, TN:

Project Location: Knoxville, TN 37924

Comment: Selling home and inspector says high levels of Radon

Project Location: Knoxville, TN 37914

Comment: In the middle of closing on this property and want to get an estimate for installing a Radon System. Test was performed during inspection at showed high levels above 4. A few times within 48hrs peaked around 16

Project Location: Knoxville, TN 37931

Comment: Interested in a quote for installation of radon mitigation

Project Location: Knoxville, TN 37918

Comment: I have an electronic meter that reads a long-term level between 7-10...after a rain storm, it usually goes up to around 14-15 on the short-term reading. After a big rainstorm last week it went all the way to 54 in the short-term reading. When I air out the house on the weekends the readings drop to safe levels briefly.

Project Location: Knoxville, TN 37922

Comment: High radon levels in crawlspace.

Project Location: Knoxville, TN 37931

Comment: Replace fan in radon remediation system.

Project Location: Knoxville, TN 37932

Comment: Buying a property. Want to make sure radon levels are acceptable.

Project Location: Knoxville, TN 37914

Comment: Selling a home and the buyer had a radon test performed. The test came back positive.

Project Location: Knoxville, TN 37922

Comment: I have a seller who is needing a quote for radon mitigation. We did a radon inspection and we would like to have a quote from you if possible.

Project Location: Knoxville, TN 37919

Comment: Would like a quote for Radon mitigation for my home.

Project Location: Knoxville, TN 37932

Comment: Home Inspection showed elevated Radon.

Project Location: Knoxville, TN 37919

Comment: Interested in testing for radon in our home.

Project Location: Knoxville, TN 37932

Comment: Just need to get the radon levels in my house checked.

Project Location: Knoxville, TN 37934

Comment: Test for Radon level

Project Location: Knoxville, TN 37912

Comment: Various health concerns, hoarseness, persistent caugh, resp. Infections.