Leon, WV Radon Mitigation and Testing

Q: What EPA Radon Zone is Leon in?

Leon is in Mason County, EPA Zone 2.

Q: How much does radon mitigation cost in Leon?

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

Mason County

EPA Zone 2

Located in Mason County along the Ohio River valley within the Huntington metropolitan area, Leon sits where alluvial deposits over sedimentary bedrock create variable radon conditions. The community's housing reflects typical West Virginia river valley construction, including older homes with stone foundations and newer properties with concrete block basements. Given the limited local testing data, residents in the 25123 area should conduct radon testing to establish individual home risk levels.

Leon, WV Radon Mitigation

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

Leon, WV Radon Testing

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

Leon Radon Facts

Key details about the radon risk profile for Leon and the 25123 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Mason County, WV

Zip Code

25123

Predicted Screening Level

2–4 pCi/L (Zone 2)

Leon and the 25123 zip code are located in Mason County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Leon, WV

What EPA Radon Zone is Leon in?

Leon and the 25123 zip code are in Mason County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Leon?

Radon mitigation in Leon 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 Leon?

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 West Virginia

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Charles Town	8.10 pCi/L	10
Berkeley Springs	7.70 pCi/L	10
Martinsburg	16.00 pCi/L	8
Harpers Ferry	6.57 pCi/L	7
Ridgeley	9.00 pCi/L	5
Shepherdstown	6.25 pCi/L	4
Kearneysville	5.50 pCi/L	2
Ranson	14.00 pCi/L	1
Morgantown	5.00 pCi/L	1
Charleston	3.00 pCi/L	1