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Laredo, TX Radon Levels

Check local Laredo radon levels and find certified testing and mitigation professionals to keep your home safe


Laredo, TX Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Webb County, TX
Zip Code 78040

As Webb County's largest city along the Rio Grande, Laredo sits in South Texas where Cretaceous limestone and sandstone formations typically produce lower radon levels. Testing data for the metro area's zip codes (78040-78046) remains limited, though the EPA Zone 3 classification suggests generally lower risk. However, individual testing is still recommended, particularly for homes with concrete slab construction that may have developed cracks over time in this region's expansive clay soils.

Laredo, TX Radon Mitigation

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

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Radon FAQ for Laredo, TX

What EPA Radon Zone is Laredo in?
Laredo and the 78040 zip code are in Webb 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 Laredo?
Radon mitigation in Laredo 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 Laredo?
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 in Texas with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Lubbock 12.70 pCi/L 10
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