Willis, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Willis in?

Willis is in Montgomery County, EPA Zone 3.

Q: How much does radon mitigation cost in Willis?

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

Montgomery County

EPA Zone 3

Situated in Montgomery County within the Houston Metro area, Willis sits in the East Texas pine belt where sandy soils and coastal plain geology typically result in lower radon potential. Testing data for zip code 77318 is currently unavailable, though the area's EPA Zone 3 classification suggests minimal radon risk. Despite this lower regional potential, residents with crawl spaces or those in areas with different soil compositions should still consider radon testing.

Willis, TX Radon Mitigation

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

Willis, TX Radon Testing

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

Willis Radon Facts

Key details about the radon risk profile for Willis and the 77318 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Montgomery County, TX

Zip Code

77318

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Willis and the 77318 zip code are located in Montgomery 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 Willis, TX

What EPA Radon Zone is Willis in?

Willis and the 77318 zip code are in Montgomery 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 Willis?

Radon mitigation in Willis 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 Willis?

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