2026-03-01 · 4 min read
Radon Mitigation Cost in Wyoming (2026)
Wyoming has high radon risk across much of the state — uranium deposits are literally mined here. Mitigation costs $1,000–$2,400, with rural premiums for remote areas.
Radon in Wyoming
Wyoming is radon country — literally. The state is one of the leading uranium producers in the US, and that geology creates widespread radon risk for homeowners. Uranium-bearing granite in the Laramie Range and Medicine Bow Mountains, uranium-rich sedimentary deposits in the Powder River Basin, and volcanic geology throughout the state all produce elevated radon.
The Wyoming Department of Environmental Quality estimates a significant percentage of Wyoming homes exceed the EPA action level. Major cities with elevated readings include Casper, Cheyenne, Laramie, Gillette, and Rock Springs.
Cost by Foundation Type
Basement: $1,000–$2,000
Wyoming's cold climate makes basements common, particularly in Cheyenne, Laramie, and Casper.
- Unfinished basement: $1,000–$1,500
- Finished basement: $1,400–$2,000
Slab-on-Grade: $950–$1,800
Common in Gillette, Rock Springs, and newer suburban construction.
Crawl Space: $2,500–$5,500
Found in older homes throughout the state. Rocky Mountain terrain can create difficult crawl space access.
Wyoming-Specific Factors
Uranium mining areas: If your home is in or near Fremont, Carbon, or Crook counties — historic uranium mining areas — ask your contractor about elevated soil radon beyond typical geology. These areas can have extremely high readings.
Rural premiums: Wyoming is vast and sparsely populated. Outside the main cities, expect travel fees and longer scheduling windows. Some remote areas have no certified contractor within 100 miles.
Cold climate: Wyoming winters are severe — homes are tightly sealed for much of the year, maximizing radon accumulation during the high-exposure months.
Wind: Wyoming's famous wind actually helps in one way — homes with well-designed passive ventilation sometimes have better natural radon dilution. But this is not a substitute for testing or mitigation.
Wyoming Resources
- WY Dept of Environmental Quality: deq.wyoming.gov (search "radon")
- Verify NRPP: radonproficiency.org
- Verify NRSB: nrsb.org
Frequently Asked Questions
How bad is radon in Wyoming?
Wyoming has significant radon risk statewide. The state sits on uranium-bearing granite, sandstone, and sedimentary deposits — Wyoming is one of the top uranium-producing states in the US. Casper, Cheyenne, Laramie, and Gillette all have elevated readings. Most of Wyoming is EPA Zone 1 or Zone 2.
How much does radon mitigation cost in Wyoming?
Expect $1,000–$2,000 in Cheyenne or Casper. Rural Wyoming carries travel premiums — add $300–$800 for remote locations. Overall Wyoming pricing is moderate by Rocky Mountain standards.
Does Wyoming require radon contractor licensing?
Wyoming does not have a state radon contractor licensing program. Verify NRPP or NRSB national certification.
Find a Certified Mitigator Near You
Every contractor on RadonBase is NRPP or NRSB certified — mitigators only, no testers.
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