Tomball, TX Radon Levels
Check local Tomball radon levels and find certified testing and mitigation professionals to keep your home safe
Tomball, TX Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Harris County, TX
Zip Code
77375
Located northwest of downtown Houston in Harris County, Tomball sits within EPA Zone 3 where Gulf Coastal Plain sediments typically produce lower radon levels. The community's rapid suburban growth features predominantly slab-on-grade construction typical of the Houston Metro's clay soils and warm climate. While testing data for zip code 77375 remains limited, homeowners should still consider testing since radon can accumulate even in low-risk geological settings.
Tomball, 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 Tomball, TX
What EPA Radon Zone is Tomball in?
Tomball and the 77375 zip code are in Harris 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 Tomball?
Radon mitigation in Tomball 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 Tomball?
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.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| 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 |