Combs, AR Radon Mitigation and Testing

Q: What EPA Radon Zone is Combs in?

Combs is in Madison County, EPA Zone 3.

Q: How much does radon mitigation cost in Combs?

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

Madison County

EPA Zone 3

This small Madison County community in the Fayetteville Metro area rests in the Arkansas Ozarks, where limestone karst topography creates variable radon conditions. Homes in Combs (76442) typically feature a mix of basement and crawl space foundations that can trap radon gas from the underlying Ordovician limestone bedrock. With limited local testing data available, homeowners should conduct professional radon testing to determine their individual risk levels.

Combs, AR Radon Mitigation

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

Combs, AR Radon Testing

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

Combs Radon Facts

Key details about the radon risk profile for Combs and the 72721 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Madison County, AR

Zip Code

72721

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Combs and the 72721 zip code are located in Madison County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Combs, AR

What EPA Radon Zone is Combs in?

Combs and the 72721 zip code are in Madison County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Combs?

Radon mitigation in Combs 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 Combs?

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 Arkansas

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

City	Avg User Radon Level	Submissions
Hot Springs Village	11.60 pCi/L	5
Bentonville	4.00 pCi/L	4
Bella Vista	13.67 pCi/L	3
Little Rock	7.00 pCi/L	1