Thurmont, MD Radon Levels
Check local Thurmont radon levels and find certified testing and mitigation professionals to keep your home safe
Thurmont, MD Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Frederick County, MD
Zip Code
21788
Nestled in Frederick County within the Washington Metro area, Thurmont sits in Maryland's Catoctin Mountains where metamorphic bedrock can generate elevated radon levels. With testing data unavailable for zip code 21788, homeowners should prioritize radon testing as the geological setting and typical basement construction create conditions favorable for radon accumulation.
Thurmont, MD 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 Thurmont, MD
What EPA Radon Zone is Thurmont in?
Thurmont and the 21788 zip code are in Frederick 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 Thurmont?
Radon mitigation in Thurmont 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 Thurmont?
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 Maryland
Cities in Maryland with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Frederick | 8.29 pCi/L | 7 |
| Potomac | 9.00 pCi/L | 6 |
| Hagerstown | 8.67 pCi/L | 6 |
| Westminster | 14.50 pCi/L | 4 |
| Baltimore | 7.00 pCi/L | 4 |
| Annapolis | 4.25 pCi/L | 4 |
| Upper Marlboro | 15.00 pCi/L | 3 |
| Edgewater | 12.67 pCi/L | 3 |
| Bowie | 9.00 pCi/L | 3 |
| Frostburg | 8.67 pCi/L | 3 |