Warrenton, VA Radon Mitigation and Testing

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.

Avg: 7.70 pCi/L

Fauquier County

EPA Zone 2

3 user tests

Warrenton is located in Fauquier County, Virginia. With 3 user-submitted readings averaging 7.70 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 20186 zip code.

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

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

Warrenton, VA Radon Testing

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

Warrenton, Virginia Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Warrenton, VA	21-50 Years	Full Basement	Apr 2021
12 pCi/L	Warrenton, VA	21-50 Years	Partial Basement	Feb 2019
8 pCi/L	Warrenton, VA	51-99 Years	Full Basement	Jul 2018

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

Warrenton Radon Facts

Key details about the radon risk profile for Warrenton and the 20186 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Fauquier County, VA

Zip Code

20186

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

7.70 pCi/L

User Tests Submitted

Warrenton and the 20186 zip code are located in Fauquier 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 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 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