Sulphur, LA Radon Levels
Check local Sulphur radon levels and find certified testing and mitigation professionals to keep your home safe
Sulphur, LA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Calcasieu Parish County, LA
Zip Code
70663
Situated in Calcasieu Parish within Louisiana's coastal plain, Sulphur typically shows lower radon levels due to the region's sandy soils and high water table conditions. Testing data for zip codes 70663 and 70665 is currently limited, but the area's geology generally reduces radon accumulation compared to other regions. Most local homes feature slab-on-grade construction, which naturally limits radon entry points from soil gas.
Sulphur, LA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Sulphur?
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Radon FAQ for Sulphur, LA
What EPA Radon Zone is Sulphur in?
Sulphur and the 70663 zip code are in Calcasieu Parish 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 Sulphur?
Radon mitigation in Sulphur 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 Sulphur?
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 Louisiana
Cities in Louisiana with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| New Orleans | 8.00 pCi/L | 1 |