Lewisville, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Lewisville in?

Lewisville is in Denton County, EPA Zone 3.

Q: How much does radon mitigation cost in Lewisville?

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

Denton County

EPA Zone 3

Located in Denton County within the Dallas Metro area, Lewisville (75057) sits in EPA Zone 3 where lower radon levels are generally expected across North Texas. The region's clay and sandy soils over sedimentary formations typically produce minimal radon accumulation in the area's predominantly slab-on-grade housing stock. Despite the lower regional risk, testing data remains limited, so homeowners should consider radon testing to ensure their properties meet safety recommendations.

Lewisville, TX Radon Mitigation

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

Lewisville, TX Radon Testing

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

Lewisville Radon Facts

Key details about the radon risk profile for Lewisville and the 75057 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Denton County, TX

Zip Code

75057

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Lewisville and the 75057 zip code are located in Denton 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 Lewisville, TX

What EPA Radon Zone is Lewisville in?

Lewisville and the 75057 zip code are in Denton 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 Lewisville?

Radon mitigation in Lewisville 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 Lewisville?

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