Irmo, SC Radon Levels
Check local Irmo radon levels and find certified testing and mitigation professionals to keep your home safe
Irmo, SC Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Richland County, SC
Zip Code
29063
This Richland County suburb northwest of Columbia sits in the Sandhills region over Cretaceous sand and clay formations. While radon testing data for zip code 29063 remains sparse, the geological setting and mix of basement and crawl space foundations warrant homeowner testing consideration.
Irmo, SC 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 Irmo, SC
What EPA Radon Zone is Irmo in?
Irmo and the 29063 zip code are in Richland 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 Irmo?
Radon mitigation in Irmo 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 Irmo?
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 South Carolina
Cities in South Carolina with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Fort Mill | 6.00 pCi/L | 1 |
| Greenville | 5.00 pCi/L | 1 |