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Centreville, VA Radon Levels

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


Centreville, VA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Fairfax County, VA
Zip Code 20120
Avg. User Level 4.00 pCi/L
User Tests 1

Located in Fairfax County within the Washington metro area, Centreville shows an average radon level of 4.0 pCi/L based on available testing data. This reading sits right at the EPA action threshold, making ongoing testing particularly important for homeowners in zip codes 20120 and 20121. The area's mix of residential developments built on Piedmont geology means individual homes can vary significantly in their radon concentrations.

4.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Centreville, VA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Centreville, VA Radon Mitigation

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

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Centreville, VA Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Centreville, VA 21-50 Years Full Basement

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

Radon FAQ for Centreville, VA

What is the average radon level in Centreville, VA?
Based on 1 user-submitted test, the average radon level in Centreville is 4.00 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 Centreville in?
Centreville and the 20120 zip code are in Fairfax County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Centreville?
Radon mitigation in Centreville 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 Centreville?
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.

CityAvg User Radon LevelSubmissions
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