Chattanooga, TN Radon Mitigation and Testing

Q: What is the average radon level in Chattanooga, TN?

Based on 2 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is Chattanooga in?

Chattanooga is in Hamilton County, EPA Zone 2.

Q: How much does radon mitigation cost in Chattanooga?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 5.00 pCi/L

Hamilton County

EPA Zone 2

2 user tests

Chattanooga is located in Hamilton County, Tennessee. With 2 user-submitted readings averaging 5.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 37402 zip code.

5.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Chattanooga, TN. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Chattanooga, TN Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Chattanooga, TN Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Chattanooga, Tennessee Radon Levels

User-submitted radon test readings from homes in the Chattanooga area.

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Chattanooga, TN	51-99 Years	Partial Basement	Feb 2022
5 pCi/L	Chattanooga, TN	51-99 Years	Partial Basement	Mar 2019

Have a radon test result for Chattanooga? Submit your reading to help other homeowners.

Chattanooga Radon Facts

Key details about the radon risk profile for Chattanooga and the 37402 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Hamilton County, TN

Zip Code

37402

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

5.00 pCi/L

User Tests Submitted

Chattanooga and the 37402 zip code are located in Hamilton County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Chattanooga, TN

What is the average radon level in Chattanooga, TN?

Based on 2 user-submitted tests, the average radon level in Chattanooga is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Chattanooga in?

Chattanooga and the 37402 zip code are in Hamilton County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Chattanooga?

Radon mitigation in Chattanooga typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Chattanooga?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Tennessee

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Elizabethton	7.33 pCi/L	3
Cleveland	5.33 pCi/L	3
Johnson City	4.33 pCi/L	3
Maryville	10.50 pCi/L	2
Columbia	8.50 pCi/L	2
Bristol	6.50 pCi/L	2
Chattanooga	5.00 pCi/L	2
Clarksville	20.00 pCi/L	1
Kingsport	5.00 pCi/L	1
Knoxville	4.00 pCi/L	1
Greeneville	No submissions	0
Murfreesboro	No submissions	0