Saint Mary, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Saint Mary in?

Saint Mary is in Ste Genevieve County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Saint Mary?

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

Ste Genevieve County

EPA Zone Unknown

Saint Mary, MO resides in Ste Genevieve County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification. Testing is recommended for all homes in the 63673 zip code area.

Saint Mary, MO Radon Mitigation

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

Saint Mary, MO Radon Testing

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

Saint Mary Radon Facts

Key details about the radon risk profile for Saint Mary and the 63673 zip code area.

EPA Radon Zone

Unknown

County

Ste Genevieve County, MO

Zip Code

63673

Predicted Screening Level

Unknown

Saint Mary and the 63673 zip code are located in Ste Genevieve County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Saint Mary, MO

What EPA Radon Zone is Saint Mary in?

Saint Mary and the 63673 zip code are in Ste Genevieve County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

How much does radon mitigation cost in Saint Mary?

Radon mitigation in Saint Mary 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 Saint Mary?

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