Rockville, VA Radon Levels
Check local Rockville radon levels and find certified testing and mitigation professionals to keep your home safe
Rockville, VA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Hanover County, VA
Zip Code
23146
Situated in Hanover County north of Richmond, Rockville lies within Virginia's Piedmont region where granite bedrock and residual soils create moderate radon potential. The area features a blend of historic properties and newer suburban developments, many with full or partial basements in zip code 23146. Given the limited available testing data, residents should prioritize professional radon testing to assess their individual home's risk level.
Rockville, VA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Rockville, VA
What EPA Radon Zone is Rockville in?
Rockville and the 23146 zip code are in Hanover County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Rockville?
Radon mitigation in Rockville 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 Rockville?
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 |