South Houston, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is South Houston in?

South Houston is in Harris County, EPA Zone 3.

Q: How much does radon mitigation cost in South Houston?

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

Harris County

EPA Zone 3

Positioned in Harris County within the greater Houston Metro area (zip code 77587), South Houston sits on Gulf Coastal Plain sediments that typically produce lower radon levels. The community's housing includes both older mid-century homes and newer developments, many built on slab-on-grade foundations common to the region. Although testing data is currently limited, homeowners should still conduct radon testing as individual properties can vary significantly.

South Houston, TX Radon Mitigation

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

South Houston, TX Radon Testing

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

South Houston Radon Facts

Key details about the radon risk profile for South Houston and the 77587 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Harris County, TX

Zip Code

77587

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

South Houston and the 77587 zip code are located in Harris 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 South Houston, TX

What EPA Radon Zone is South Houston in?

South Houston and the 77587 zip code are in Harris 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 South Houston?

Radon mitigation in South Houston 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 South Houston?

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