Irondale, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Irondale in?

Irondale is in Washington County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Irondale?

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

Washington County

EPA Zone Unknown

Located in southeastern Missouri's Washington County, Irondale sits within the Ozark region where limestone and dolomite formations can contribute to elevated radon levels in some areas. The community features rural housing stock with older farmsteads alongside more recent construction, many with partial basements or crawl spaces. Since radon testing data for zip code 63648 is currently limited, homeowners are advised to conduct testing to determine their individual radon exposure risk.

Irondale, MO Radon Mitigation

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

Irondale, MO Radon Testing

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

Irondale Radon Facts

Key details about the radon risk profile for Irondale and the 63648 zip code area.

EPA Radon Zone

Unknown

County

Washington County, MO

Zip Code

63648

Predicted Screening Level

Unknown

Irondale and the 63648 zip code are located in Washington 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 Irondale, MO

What EPA Radon Zone is Irondale in?

Irondale and the 63648 zip code are in Washington 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 Irondale?

Radon mitigation in Irondale 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 Irondale?

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