Troy, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Troy in?

Troy is in Lincoln County, EPA Zone 1.

Q: How much does radon mitigation cost in Troy?

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

Lincoln County

EPA Zone 1

Nestled in the Cabinet Mountains region of northwestern Montana, Troy in Lincoln County sits in terrain dominated by metamorphic and sedimentary rock formations. Testing data remains limited for this mountain community, making individual home testing valuable for understanding radon exposure in this forested valley setting.

Troy, MT Radon Mitigation

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

Troy, MT Radon Testing

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

Troy Radon Facts

Key details about the radon risk profile for Troy and the 59935 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Lincoln County, MT

Zip Code

59935

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Troy and the 59935 zip code are located in Lincoln 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 Troy, MT

What EPA Radon Zone is Troy in?

Troy and the 59935 zip code are in Lincoln 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 Troy?

Radon mitigation in Troy 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 Troy?

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