Fredericksburg, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Fredericksburg in?

Fredericksburg is in Gillespie County, EPA Zone 3.

Q: How much does radon mitigation cost in Fredericksburg?

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

Gillespie County

EPA Zone 3

Located in the heart of Gillespie County within the San Antonio Metro region, Fredericksburg sits atop the Edwards Plateau where limestone bedrock typically produces moderate radon conditions. This historic German settlement in the Texas Hill Country features a mix of traditional limestone buildings and modern construction. While specific testing data isn't extensively documented, the underlying geological formations suggest homeowners should consider radon testing, especially in homes with basements or lower-level spaces.

Fredericksburg, TX Radon Mitigation

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

Fredericksburg, TX Radon Testing

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

Fredericksburg Radon Facts

Key details about the radon risk profile for Fredericksburg and the 78624 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Gillespie County, TX

Zip Code

78624

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Fredericksburg and the 78624 zip code are located in Gillespie County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Fredericksburg, TX

What EPA Radon Zone is Fredericksburg in?

Fredericksburg and the 78624 zip code are in Gillespie County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Fredericksburg?

Radon mitigation in Fredericksburg 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 Fredericksburg?

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 Texas

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

City	Avg User Radon Level	Submissions
Lubbock	12.67 pCi/L	9
San Antonio	6.57 pCi/L	7
Austin	6.14 pCi/L	7
Dallas	8.00 pCi/L	5
Abilene	4.50 pCi/L	2
Houston	3.50 pCi/L	2
Plano	6.00 pCi/L	1
Frisco	3.00 pCi/L	1
Nacogdoches	No submissions	0