Port Royal, VA Radon Mitigation and Testing

Q: What EPA Radon Zone is Port Royal in?

Port Royal is in Caroline County, EPA Zone 3.

Q: How much does radon mitigation cost in Port Royal?

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

Caroline County

EPA Zone 3

Positioned in Caroline County on Virginia's coastal plain, Port Royal lies over sedimentary deposits and clay soils characteristic of the Mid-Atlantic region. With minimal radon testing data available for zip code 22535, homeowners should conduct testing to establish their property-specific radon levels. The area's mixed housing stock and geological conditions can create varying radon entry pathways into homes.

Port Royal, VA Radon Mitigation

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

Port Royal, VA Radon Testing

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

Port Royal Radon Facts

Key details about the radon risk profile for Port Royal and the 22535 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Caroline County, VA

Zip Code

22535

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Port Royal and the 22535 zip code are located in Caroline County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Port Royal, VA

What EPA Radon Zone is Port Royal in?

Port Royal and the 22535 zip code are in Caroline County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Port Royal?

Radon mitigation in Port Royal 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 Port Royal?

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