Maryland Heights, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Maryland Heights in?

Maryland Heights is in St Louis County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Maryland Heights?

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

St Louis County

EPA Zone Unknown

This St. Louis County suburb has recorded an average radon level of 9.0 pCi/L, significantly exceeding the EPA's 4.0 pCi/L action threshold and indicating immediate mitigation needs. Located within the broader St. Louis Metro area, Maryland Heights sits over limestone and dolomite bedrock that can facilitate substantial radon accumulation. The 63043 zip code area's predominantly suburban homes with basements create ideal conditions for radon concentration, making professional testing and mitigation essential.

Maryland Heights, MO Radon Mitigation

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

Maryland Heights, MO Radon Testing

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

Maryland Heights, Missouri Radon Levels

User-submitted radon test readings from homes in the Maryland Heights area.

Radon Level	City	Home Age	Foundation	Submitted
9 pCi/L	MARYLAND HEIGHTS, MO	21-50 Years	Full Basement	Dec 2017

Have a radon test result for Maryland Heights? Submit your reading to help other homeowners.

Maryland Heights Radon Facts

Key details about the radon risk profile for Maryland Heights and the 63043 zip code area.

EPA Radon Zone

Unknown

County

St Louis County, MO

Zip Code

63043

Predicted Screening Level

Unknown

Maryland Heights and the 63043 zip code are located in St Louis 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 Maryland Heights, MO

What EPA Radon Zone is Maryland Heights in?

Maryland Heights and the 63043 zip code are in St Louis 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 Maryland Heights?

Radon mitigation in Maryland Heights 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 Maryland Heights?

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