Warrenton, VA Radon Levels

Q: What is the average radon level in Warrenton, VA?

Based on 3 user-submitted tests, the average radon level is 7.70 pCi/L.

Q: What EPA Radon Zone is Warrenton in?

Warrenton is in Fauquier County, EPA Zone 2.

Q: How much does radon mitigation cost in Warrenton?

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

Check local Warrenton radon levels and find certified testing and mitigation professionals to keep your home safe

Warrenton, VA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Fauquier County, VA

Zip Code 20186

Avg. User Level 7.70 pCi/L

User Tests 3

Historic Fauquier County seat within the Washington Metro area, Warrenton has recorded an average radon level of 7.67 pCi/L across ZIP codes 20186 and 20187, nearly double the EPA action threshold. This Virginia Piedmont community sits on crystalline bedrock that contributes to elevated radon production throughout the region. With readings ranging from 3.0 to 12.0 pCi/L, all area homeowners should test their properties and strongly consider radon mitigation systems.

7.70

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Warrenton, VA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Warrenton, VA Radon Mitigation

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Warrenton, VA Radon Levels

User-submitted radon test readings from homes in the Warrenton area.

Radon Level	City	Home Age	Foundation
3 pCi/L	Warrenton, VA	21-50 Years	Full Basement
12 pCi/L	Warrenton, VA	21-50 Years	Partial Basement
8 pCi/L	Warrenton, VA	51-99 Years	Full Basement

Have a radon test result for Warrenton? Submit your reading to help other homeowners.

Radon FAQ for Warrenton, VA

What is the average radon level in Warrenton, VA?

Based on 3 user-submitted tests, the average radon level in Warrenton is 7.70 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Warrenton in?

Warrenton and the 20186 zip code are in Fauquier 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 Warrenton?

Radon mitigation in Warrenton 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 Warrenton?

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 in Virginia with the most user-submitted radon test data, ranked by number of submissions.

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
Williamsburg	5.80 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

Warrenton, VA Radon Levels

Check local Warrenton radon levels and find certified testing and mitigation professionals to keep your home safe

Warrenton, VA Radon Facts

Warrenton, VA Radon Mitigation

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Warrenton, VA Radon Levels

Radon FAQ for Warrenton, VA

Most Active Radon Markets in Virginia

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