Fairfax, VA Radon Mitigation and Testing
Located in Fairfax City and County within the Washington D.C. metropolitan area, Fairfax shows concerning radon levels with an average of 9.67 pCi/L - significantly exceeding the EPA action threshold. The area's Piedmont geology, featuring crystalline bedrock and residual soils, creates conditions highly favorable for radon accumulation in the many split-level and basement homes common throughout Northern Virginia. Given these elevated readings across multiple zip codes, all residents should prioritize professional radon testing and mitigation.
Based on 3 user-submitted radon tests for homes in Fairfax, VA. The EPA recommends taking action at or above 4.0 pCi/L.
Fairfax, VA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Fairfax, VA Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Fairfax, Virginia Radon Levels
User-submitted radon test readings from homes in the Fairfax area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 15 pCi/L | Fairfax, VA | 21-50 Years | Full Basement | Jan 2023 |
| 6 pCi/L | Fairfax, VA | 51-99 Years | Full Basement | Feb 2022 |
| 8 pCi/L | Fairfax, VA | 21-50 Years | Full Basement | Jun 2019 |
Have a radon test result for Fairfax? Submit your reading to help other homeowners.
Fairfax Radon Facts
Key details about the radon risk profile for Fairfax and the 22030 zip code area.
Fairfax and the 22030 zip code are located in Fairfax County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Fairfax, VA
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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 |