Grand Isle, LA Radon Levels
Check local Grand Isle radon levels and find certified testing and mitigation professionals to keep your home safe
Grand Isle, LA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Jefferson Parish County, LA
Zip Code
70358
Barrier island community Grand Isle in Jefferson Parish sits on Mississippi River delta sediments within the New Orleans Metro area. The coastal location's sandy soils and elevated construction typically result in lower radon levels, though limited testing data for zip code 70358 means individual homes should still be tested.
Grand Isle, 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 Grand Isle?
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Radon FAQ for Grand Isle, LA
What EPA Radon Zone is Grand Isle in?
Grand Isle and the 70358 zip code are in Jefferson 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 Grand Isle?
Radon mitigation in Grand Isle 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 Grand Isle?
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 |