Lambert, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Lambert in?

Lambert is in Richland County, EPA Zone 1.

Q: How much does radon mitigation cost in Lambert?

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

Richland County

EPA Zone 1

This eastern Montana community in Richland County sits on Fort Union Formation sediments where uranium-bearing lignite deposits can contribute to elevated radon production. Testing data for Lambert (59243) remains sparse, making professional radon measurement particularly important given the region's geological potential. Local housing includes many ranch-style homes with partial basements where radon gas can accumulate during Montana's long winter heating seasons.

Lambert, MT Radon Mitigation

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

Lambert, MT Radon Testing

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

Lambert Radon Facts

Key details about the radon risk profile for Lambert and the 59243 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Richland County, MT

Zip Code

59243

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Lambert and the 59243 zip code are located in Richland 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 Lambert, MT

What EPA Radon Zone is Lambert in?

Lambert and the 59243 zip code are in Richland 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 Lambert?

Radon mitigation in Lambert 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 Lambert?

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