Collinsville, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Collinsville in?

Collinsville is in Grayson County, EPA Zone 3.

Q: How much does radon mitigation cost in Collinsville?

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

Grayson County

EPA Zone 3

Positioned in Grayson County within the Sherman Metro area, Collinsville rests on Cretaceous-era limestone and shale formations typical of north Texas. Current radon testing data for zip code 76233 remains limited, highlighting the importance of individual home testing. Though Texas generally shows lower radon potential than northern states, specific soil conditions and home construction details can still produce concerning indoor air quality levels.

Collinsville, TX Radon Mitigation

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

Collinsville, TX Radon Testing

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

Collinsville Radon Facts

Key details about the radon risk profile for Collinsville and the 76233 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Grayson County, TX

Zip Code

76233

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Collinsville and the 76233 zip code are located in Grayson 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 Collinsville, TX

What EPA Radon Zone is Collinsville in?

Collinsville and the 76233 zip code are in Grayson 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 Collinsville?

Radon mitigation in Collinsville 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 Collinsville?

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