High Ridge, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is High Ridge in?

High Ridge is in Jefferson County, EPA Zone 2.

Q: How much does radon mitigation cost in High Ridge?

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

Jefferson County

EPA Zone 2

Situated in Jefferson County within the St. Louis Metro area, High Ridge occupies rolling hills over Mississippian limestone formations common to the Missouri Ozark foothills. While radon testing data for zip code 63049 remains limited, the underlying geology suggests homeowners should test their properties, particularly those with basement foundations typical of this suburban community.

High Ridge, MO Radon Mitigation

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

High Ridge, MO Radon Testing

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

High Ridge Radon Facts

Key details about the radon risk profile for High Ridge and the 63049 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Jefferson County, MO

Zip Code

63049

Predicted Screening Level

2–4 pCi/L (Zone 2)

High Ridge and the 63049 zip code are located in Jefferson 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 High Ridge, MO

What EPA Radon Zone is High Ridge in?

High Ridge and the 63049 zip code are in Jefferson 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 High Ridge?

Radon mitigation in High Ridge 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 High Ridge?

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