Mosby, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Mosby in?

Mosby is in Garfield County, EPA Zone 1.

Q: How much does radon mitigation cost in Mosby?

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

Garfield County

EPA Zone 1

This remote community in Garfield County sits on Montana's high plains where sedimentary bedrock and thin soils can create variable radon conditions. With testing data unavailable for zip code 59058, residents should prioritize individual home testing given Montana's generally elevated radon potential. The area's widely scattered residential properties include both ranch-style homes and manufactured housing typical of rural Montana settlements.

Mosby, MT Radon Mitigation

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

Mosby, MT Radon Testing

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

Mosby Radon Facts

Key details about the radon risk profile for Mosby and the 59058 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Garfield County, MT

Zip Code

59058

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Mosby and the 59058 zip code are located in Garfield 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 Mosby, MT

What EPA Radon Zone is Mosby in?

Mosby and the 59058 zip code are in Garfield 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 Mosby?

Radon mitigation in Mosby 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 Mosby?

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