Mertens, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Mertens in?

Mertens is in Hill County, EPA Zone 3.

Q: How much does radon mitigation cost in Mertens?

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

Hill County

EPA Zone 3

Located in Hill County south of Dallas-Fort Worth, Mertens sits over Texas Blackland Prairie soils and underlying limestone that can create variable radon conditions in zip code 76666. Testing data for this small community remains limited, making individual home assessment important for residents. The area's clay soils over carbonate bedrock can sometimes allow radon accumulation, particularly in homes with basements or enclosed lower-level spaces.

Mertens, TX Radon Mitigation

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

Mertens, TX Radon Testing

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

Mertens Radon Facts

Key details about the radon risk profile for Mertens and the 76666 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Hill County, TX

Zip Code

76666

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Mertens and the 76666 zip code are located in Hill 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 Mertens, TX

What EPA Radon Zone is Mertens in?

Mertens and the 76666 zip code are in Hill 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 Mertens?

Radon mitigation in Mertens 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 Mertens?

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