Harleysville, PA Radon Mitigation and Testing

Q: What EPA Radon Zone is Harleysville in?

Harleysville is in Montgomery County, EPA Zone 1.

Q: How much does radon mitigation cost in Harleysville?

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

Montgomery County

EPA Zone 1

Nestled in Montgomery County within the Philadelphia Metro, Harleysville's proximity to Reading Prong geological formations and mix of older colonial-era homes with modern suburban developments creates variable radon potential. While specific testing data for the 19438 zip code area is currently limited, the region's complex geology makes professional radon assessment particularly important for homeowners.

Harleysville, PA Radon Mitigation

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

Harleysville, PA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Harleysville Radon Facts

Key details about the radon risk profile for Harleysville and the 19438 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Montgomery County, PA

Zip Code

19438

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Harleysville and the 19438 zip code are located in Montgomery County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Harleysville, PA

What EPA Radon Zone is Harleysville in?

Harleysville and the 19438 zip code are in Montgomery 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 Harleysville?

Radon mitigation in Harleysville 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 Harleysville?

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 Pennsylvania

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
State College	10.00 pCi/L	14
Chambersburg	10.14 pCi/L	7
Easton	12.33 pCi/L	6
Butler	12.40 pCi/L	5
Dingmans Ferry	5.80 pCi/L	5
Hanover	14.00 pCi/L	4
Mechanicsburg	13.75 pCi/L	4
Greenville	10.75 pCi/L	4
Pittsburgh	9.25 pCi/L	4
Albrightsville	9.00 pCi/L	4
Philadelphia	8.00 pCi/L	4
Lackawaxen	15.33 pCi/L	3
York	11.67 pCi/L	3
Elizabethtown	9.67 pCi/L	3
Johnstown	7.33 pCi/L	3
West Chester	6.67 pCi/L	3
Danville	5.67 pCi/L	3
Springfield	5.67 pCi/L	3
East Stroudsburg	5.00 pCi/L	3
Langhorne	4.67 pCi/L	3