Riddleton, TN Radon Mitigation and Testing

Q: What EPA Radon Zone is Riddleton in?

Riddleton is in Smith County, EPA Zone 1.

Q: How much does radon mitigation cost in Riddleton?

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

Smith County

EPA Zone 1

Situated in Smith County within the Nashville Metro area, Riddleton sits on Tennessee's Central Basin limestone formations that can contribute to radon production. Testing data for zip code 37151 remains limited, though the region's karst geology suggests potential for elevated radon in certain locations. Homeowners should conduct testing, particularly those with basement foundations or homes near limestone outcrops.

Riddleton, TN Radon Mitigation

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

Riddleton, TN Radon Testing

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

Riddleton Radon Facts

Key details about the radon risk profile for Riddleton and the 37151 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Smith County, TN

Zip Code

37151

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Riddleton and the 37151 zip code are located in Smith 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 Riddleton, TN

What EPA Radon Zone is Riddleton in?

Riddleton and the 37151 zip code are in Smith 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 Riddleton?

Radon mitigation in Riddleton 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 Riddleton?

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