Friendswood, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Friendswood in?

Friendswood is in Galveston County, EPA Zone 3.

Q: How much does radon mitigation cost in Friendswood?

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

Galveston County

EPA Zone 3

Positioned in Galveston County within the greater Houston Metro, Friendswood sits in EPA Zone 3 on the Texas Gulf Coast. Testing data for this 77546 community remains insufficient, though coastal geology typically produces lower radon levels. Nevertheless, homeowners should still test their properties, as individual homes can exceed regional averages regardless of coastal location.

Friendswood, TX Radon Mitigation

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

Friendswood, TX Radon Testing

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

Friendswood Radon Facts

Key details about the radon risk profile for Friendswood and the 77546 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Galveston County, TX

Zip Code

77546

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Friendswood and the 77546 zip code are located in Galveston 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 Friendswood, TX

What EPA Radon Zone is Friendswood in?

Friendswood and the 77546 zip code are in Galveston 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 Friendswood?

Radon mitigation in Friendswood 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 Friendswood?

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