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Perry Hall, MD Radon Levels

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


Perry Hall, MD Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Baltimore County, MD
Zip Code 21128
Avg. User Level 4.00 pCi/L
User Tests 1

This Baltimore County community in the Baltimore Metro area shows an average radon level of 4.0 pCi/L, right at the EPA action threshold based on current testing data. Homes in the 21128 zip code area, built predominantly in the mid-to-late 20th century with full basements, should be tested regularly since radon levels can vary significantly even within the same neighborhood.

4.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Perry Hall, MD. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Perry Hall, MD Radon Mitigation

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

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Perry Hall, MD Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Perry Hall, MD 0-20 Years Full Basement

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

Radon FAQ for Perry Hall, MD

What is the average radon level in Perry Hall, MD?
Based on 1 user-submitted test, the average radon level in Perry Hall is 4.00 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 Perry Hall in?
Perry Hall and the 21128 zip code are in Baltimore 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 Perry Hall?
Radon mitigation in Perry Hall 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 Perry Hall?
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