Joliet, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Joliet in?

Joliet is in Carbon County, EPA Zone 1.

Q: How much does radon mitigation cost in Joliet?

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

Carbon County

EPA Zone 1

Situated in Carbon County within the Billings metropolitan area, Joliet lies along the Yellowstone River valley where sedimentary rock formations create generally moderate radon potential. While specific testing data for zip code 59041 is currently limited, the area's high-plains geology and typically ranch-style construction with crawl spaces or slab foundations warrant individual home testing to establish baseline readings.

Joliet, MT Radon Mitigation

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

Joliet, MT Radon Testing

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

Joliet Radon Facts

Key details about the radon risk profile for Joliet and the 59041 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Carbon County, MT

Zip Code

59041

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Joliet and the 59041 zip code are located in Carbon 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 Joliet, MT

What EPA Radon Zone is Joliet in?

Joliet and the 59041 zip code are in Carbon 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 Joliet?

Radon mitigation in Joliet 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 Joliet?

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