Larslan, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Larslan in?

Larslan is in Valley County, EPA Zone 1.

Q: How much does radon mitigation cost in Larslan?

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

Larslan, MT resides 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. Testing is recommended for all homes in the 59244 zip code area.

Larslan, MT Radon Mitigation

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

Larslan, MT Radon Testing

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

Larslan Radon Facts

Key details about the radon risk profile for Larslan and the 59244 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Valley County, MT

Zip Code

59244

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Larslan and the 59244 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 Larslan, MT

What EPA Radon Zone is Larslan in?

Larslan and the 59244 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 Larslan?

Radon mitigation in Larslan 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 Larslan?

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