Decker, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Decker in?

Decker is in Big Horn County, EPA Zone 1.

Q: How much does radon mitigation cost in Decker?

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

Big Horn County

EPA Zone 1

Positioned in Big Horn County in south-central Montana, Decker benefits from EPA Zone 1 classification in a region where geological conditions can produce elevated radon levels. The area's sedimentary rock formations and semi-arid climate create variable radon potential across the landscape. Without comprehensive local testing data for zip code 59025, residents are encouraged to test their homes to establish accurate radon exposure baselines.

Decker, MT Radon Mitigation

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

Decker, MT Radon Testing

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

Decker Radon Facts

Key details about the radon risk profile for Decker and the 59025 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Big Horn County, MT

Zip Code

59025

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Decker and the 59025 zip code are located in Big Horn County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Decker, MT

What EPA Radon Zone is Decker in?

Decker and the 59025 zip code are in Big Horn County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Decker?

Radon mitigation in Decker 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 Decker?

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 Montana

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

City	Avg User Radon Level	Submissions
Butte	10.20 pCi/L	10
Missoula	6.25 pCi/L	8
Florence	11.67 pCi/L	3
Bozeman	10.33 pCi/L	3
Helena	8.67 pCi/L	3
Stevensville	7.67 pCi/L	3
Sidney	7.33 pCi/L	3
Billings	5.33 pCi/L	3
Miles City	3.33 pCi/L	3
Kalispell	7.50 pCi/L	2
Great Falls	4.50 pCi/L	2
Whitefish	4.00 pCi/L	2
Ennis	9.00 pCi/L	1
Livingston	No submissions	0