Nashua, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Nashua in?

Nashua is in Valley County, EPA Zone 1.

Q: How much does radon mitigation cost in Nashua?

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

Valley County

EPA Zone 1

Remote Valley County community Nashua sits within Montana's northern plains, where glacial deposits over sedimentary bedrock can influence radon gas production levels. Testing data for this rural area in zip code 59248 remains limited, highlighting the need for individual home assessment. Homeowners should conduct radon testing, particularly in properties with basement construction designed for Montana's extreme winter conditions.

Nashua, MT Radon Mitigation

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

Nashua, MT Radon Testing

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

Nashua Radon Facts

Key details about the radon risk profile for Nashua and the 59248 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Valley County, MT

Zip Code

59248

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Nashua and the 59248 zip code are located in Valley 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 Nashua, MT

What EPA Radon Zone is Nashua in?

Nashua and the 59248 zip code are in Valley 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 Nashua?

Radon mitigation in Nashua 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 Nashua?

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