Castleton, VA Radon Mitigation and Testing

Q: What EPA Radon Zone is Castleton in?

Castleton is in Rappahannock County, EPA Zone 2.

Q: How much does radon mitigation cost in Castleton?

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

Rappahannock County

EPA Zone 2

Part of the Washington Metro area in Rappahannock County, Castleton sits in Virginia's Piedmont region where crystalline bedrock and residual soils create moderate radon potential. The community's rural character includes historic properties and newer country homes, with both basement and crawl space foundations represented. Given the limited radon data available for zip code 22716, homeowners should prioritize testing to establish individual property risk levels.

Castleton, VA Radon Mitigation

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

Castleton, VA Radon Testing

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

Castleton Radon Facts

Key details about the radon risk profile for Castleton and the 22716 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Rappahannock County, VA

Zip Code

22716

Predicted Screening Level

2–4 pCi/L (Zone 2)

Castleton and the 22716 zip code are located in Rappahannock 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 Castleton, VA

What EPA Radon Zone is Castleton in?

Castleton and the 22716 zip code are in Rappahannock 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 Castleton?

Radon mitigation in Castleton 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 Castleton?

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 Virginia

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

City	Avg User Radon Level	Submissions
Fredericksburg	7.29 pCi/L	7
King George	7.17 pCi/L	6
Leesburg	9.80 pCi/L	5
Chantilly	9.60 pCi/L	5
Fancy Gap	9.40 pCi/L	5
Purcellville	10.75 pCi/L	4
Aldie	8.00 pCi/L	4
Front Royal	7.75 pCi/L	4
Bristol	7.50 pCi/L	4
Winchester	7.00 pCi/L	4
Williamsburg	5.75 pCi/L	4
Lovettsville	5.25 pCi/L	4
Woodbridge	4.50 pCi/L	4
Fairfax	9.67 pCi/L	3
Stafford	9.33 pCi/L	3
Louisa	8.33 pCi/L	3
Linden	7.67 pCi/L	3
Warrenton	7.67 pCi/L	3
Burke	5.67 pCi/L	3
Lynchburg	5.33 pCi/L	3