Round Top, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Round Top in?

Round Top is in Fayette County, EPA Zone 3.

Q: How much does radon mitigation cost in Round Top?

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

Fayette County

EPA Zone 3

Nestled in Fayette County within the Houston Metro's western reach, this small historic community sits on Gulf Coastal Plain sediments over limestone bedrock. The 78954 zip code encompasses rural properties and historic structures, many dating to the 19th century with pier-and-beam or early concrete foundations. Since comprehensive radon testing data is not yet available for this area, residents should consider professional radon measurements to establish baseline levels in their homes.

Round Top, TX Radon Mitigation

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

Round Top, TX Radon Testing

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

Round Top Radon Facts

Key details about the radon risk profile for Round Top and the 78954 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Fayette County, TX

Zip Code

78954

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Round Top and the 78954 zip code are located in Fayette 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 Round Top, TX

What EPA Radon Zone is Round Top in?

Round Top and the 78954 zip code are in Fayette 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 Round Top?

Radon mitigation in Round Top 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 Round Top?

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