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Helmville, MT Radon Levels

Check local Helmville radon levels and find certified testing and mitigation professionals to keep your home safe


Helmville, MT Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Powell County, MT
Zip Code 59843

Helmville occupies the Blackfoot Valley in Powell County, surrounded by Montana's Rocky Mountain geology that can produce elevated radon levels in mountain communities. The area features ranch properties and rural homes with foundations adapted to mountain conditions. Given the lack of current radon testing data for zip code 59843, residents should prioritize testing to understand their radon exposure in this geologically active region.

Helmville, MT Radon Mitigation

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

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Radon FAQ for Helmville, MT

What EPA Radon Zone is Helmville in?
Helmville and the 59843 zip code are in Powell 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 Helmville?
Radon mitigation in Helmville 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 Helmville?
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 in Montana with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
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