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Tall Timbers, MD Radon Levels

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


Tall Timbers, MD Radon Facts

EPA Radon Zone Unknown Unknown
County St Mary's County, MD
Zip Code 20690

Tall Timbers in St. Mary's County sits within the Lexington Park Metro area near the Chesapeake Bay's western shore. Coastal plain sediments and sandy soils typically create lower radon potential in this region. While testing data remains limited for this zip code 20690 area, homeowners should still conduct radon testing to establish baseline levels for their specific property.

Tall Timbers, MD 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 Tall Timbers?

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Radon FAQ for Tall Timbers, MD

What EPA Radon Zone is Tall Timbers in?
Tall Timbers and the 20690 zip code are in St Mary's County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.
How much does radon mitigation cost in Tall Timbers?
Radon mitigation in Tall Timbers 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 Tall Timbers?
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.

CityAvg User Radon LevelSubmissions
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