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      Leesburg, VA Radon Levels

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

      Leesburg, VA Radon Facts

      EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
      County Loudoun County, VA
      Zip Code 20175
      Avg. User Level 9.80 pCi/L
      User Tests 5

      This rapidly growing community in Loudoun County within the Washington Metro area shows concerning radon levels, with local testing revealing an average of 9.8 pCi/L — significantly exceeding the EPA action level. The area's mix of historic homes and new suburban developments across zip codes 20175 and 20176 creates varied radon risks, with readings ranging from 3.0 to 20.0 pCi/L. All residents should prioritize radon testing and mitigation, regardless of home age or construction type.

      9.80
      pCi/L average
      Above EPA Action Level

      Based on 5 user-submitted radon tests for homes in Leesburg, VA. The EPA recommends taking action at or above 4.0 pCi/L.

      0
      4.0 EPA
      10+

      Leesburg, VA Radon Mitigation

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

      Need Radon Mitigation or Testing in Leesburg?

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      Leesburg, VA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      3 pCi/L Leesburg, VA 21-50 Years Full Basement
      4 pCi/L Leesburg, VA 0-20 Years Full Basement
      13 pCi/L Leesburg, VA 0-20 Years Full Basement
      9 pCi/L Leesburg, VA 0-20 Years No Basement/All Slab
      20 pCi/L Leesburg, VA 21-50 Years Partial Basement

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

      Radon FAQ for Leesburg, VA

      What is the average radon level in Leesburg, VA?
      Based on 5 user-submitted tests, the average radon level in Leesburg is 9.80 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 Leesburg in?
      Leesburg and the 20175 zip code are in Loudoun 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 Leesburg?
      Radon mitigation in Leesburg 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 Leesburg?
      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

      Free Radon Mitigation Quote

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578 Local: 703-259-8570

      A licensed contractor will contact you immediately.

      * Required