Brentwood, TN Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 8.50 pCi/L.

Q: What EPA Radon Zone is Brentwood in?

Brentwood is in Williamson County, EPA Zone 1.

Q: How much does radon mitigation cost in Brentwood?

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

Avg: 8.50 pCi/L

Williamson County

EPA Zone 1

2 user tests

This affluent community in Williamson County within the Nashville metro area has recorded an average radon level of 8.5 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Built primarily on limestone bedrock typical of Middle Tennessee, Brentwood's upscale homes in zip code 37027 require radon mitigation attention. The area's EPA Zone 1 classification reflects the high radon potential from underlying geological formations.

8.50

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Brentwood, TN Radon Mitigation

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

Brentwood, TN Radon Testing

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

Brentwood, Tennessee Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Brentwood, TN	51-99 Years	No Basement/All Crawl Space	Oct 2024
14 pCi/L	Brentwood, TN	21-50 Years	No Basement/All Crawl Space	Dec 2018

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

Brentwood Radon Facts

Key details about the radon risk profile for Brentwood and the 37027 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Williamson County, TN

Zip Code

37027

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

8.50 pCi/L

User Tests Submitted

Brentwood and the 37027 zip code are located in Williamson County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Brentwood, TN

What is the average radon level in Brentwood, TN?

Based on 2 user-submitted tests, the average radon level in Brentwood is 8.50 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 Brentwood in?

Brentwood and the 37027 zip code are in Williamson County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Brentwood?

Radon mitigation in Brentwood 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 Brentwood?

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