Malvern, PA Radon Levels

Q: What EPA Radon Zone is Malvern in?

Malvern is in Chester County, EPA Zone 1.

Q: How much does radon mitigation cost in Malvern?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

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

Malvern, PA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Chester County, PA

Zip Code 19355

Malvern sits in Chester County within the Philadelphia metro area, where EPA Zone 1 classification indicates high radon potential across southeastern Pennsylvania. Current radon testing data for zip code 19355 is limited, making professional testing crucial for homeowners to assess their individual risk levels. Pennsylvania's complex geology and the prevalence of basement foundations in this region create conditions where radon can readily accumulate to significant levels.

9.00

pCi/L area average

Above EPA Action Level

Chester County average: 9.00 pCi/L, based on 10 user-submitted tests across 8 cities in the county. No homeowner readings have been submitted for Malvern itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Malvern, PA Radon Mitigation

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

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Radon Readings Near Malvern, PA

No homeowner tests have been submitted for Malvern yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
West Chester	6.6 mi	6.67 pCi/L	3
Wayne	7.0 mi	5.00 pCi/L	1
King Of Prussia	9.0 mi	7.00 pCi/L	1
Downingtown	10.1 mi	20.00 pCi/L	1
Glen Mills	10.1 mi	3.00 pCi/L	1
Broomall	10.3 mi	7.00 pCi/L	2
Media	11.3 mi	7.00 pCi/L	2
Ardmore	12.8 mi	6.00 pCi/L	2

Chester County Radon Profile

The bedrock and soils beneath Chester County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 8 cities in Chester County average 9.00 pCi/L across 10 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Chester County.

Radon FAQ for Malvern, PA

What EPA Radon Zone is Malvern in?

Malvern and the 19355 zip code are in Chester 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.

Why are radon readings shown from areas near Malvern?

No homeowner radon tests have been submitted for Malvern yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Chester County average—are the best available indicator of local conditions until Malvern homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Malvern?

Radon mitigation in Malvern 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 Malvern?

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.