New London, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is New London in?

New London is in Ralls County, EPA Zone 2.

Q: How much does radon mitigation cost in New London?

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

Ralls County

EPA Zone 2

New London in Ralls County along the Mississippi River represents Missouri's EPA Zone 2 moderate radon potential area. The community's location near river bluffs and underlying limestone formations can create variable radon conditions that differ significantly between properties. Given the limited testing data available for zip code 63459, residents should consider individual radon testing to understand their home's specific radon profile.

New London, MO Radon Mitigation

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

New London, MO Radon Testing

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

New London Radon Facts

Key details about the radon risk profile for New London and the 63459 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Ralls County, MO

Zip Code

63459

Predicted Screening Level

2–4 pCi/L (Zone 2)

New London and the 63459 zip code are located in Ralls 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 New London, MO

What EPA Radon Zone is New London in?

New London and the 63459 zip code are in Ralls 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 New London?

Radon mitigation in New London 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 New London?

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 Missouri

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

City	Avg User Radon Level	Submissions
Troy	8.50 pCi/L	4
Lees Summit	7.00 pCi/L	3
Columbia	3.00 pCi/L	2
House Springs	7.00 pCi/L	1
Kansas City	7.00 pCi/L	1
Springfield	7.00 pCi/L	1
Independence	5.00 pCi/L	1
Wentzville	No submissions	0