One base on the Missouri, and every town within an honest hour's drive.
Call (406) 770-7460The base is Great Falls, and the working range is about an hour out from it. That covers the towns below with room to spare — and the coverage isn't theoretical: scheduling, pricing, and the verification test are identical everywhere on this page. The geology is close to identical too. Nearly all of Montana is EPA Zone 1, the state reports about half of tested homes above the action level, and Cascade County's own health department puts the local sample rate at 60 percent. No town on this list has an exemption. Why the whole region tests high →
The smelter-era neighborhood across the river — five minutes and a bridge away.
Radon mitigation in Black Eagle →Where the Sun River valley opens up, 15 minutes west. Farm properties welcome.
Radon mitigation in Vaughn →Montana's first coal town, tucked in its creek canyon 25 minutes southeast.
Radon mitigation in Belt →Montana's oldest town and the Chouteau County seat, 45 minutes northeast.
Radon mitigation in Fort Benton →Call from any town on the map — the quote is free, written, and the same honest math everywhere.
(406) 770-7460Often, yes — the working rule is about an hour from the Great Falls base. Call and ask; if it's out of range you'll hear that honestly on the first call.
Yes — the published ranges hold across the service area, and every quote is written and firm before work starts.
Because the geology doesn't follow city limits: nearly all of Montana is EPA Zone 1, the state reports about half of tested homes elevated, and Cascade County's own sampling runs worse than that. The full story →