Dedham, IA Radon Levels
Check local Dedham radon levels and find certified testing and mitigation professionals to keep your home safe
Dedham, IA Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Carroll County, IA
Zip Code
51440
Positioned in Carroll County in west-central Iowa's prairie region, Dedham falls within EPA Zone 1 where glacial till over limestone bedrock creates high radon potential. The rural agricultural setting features primarily older farmhouses and newer residential properties, many with full basements typical of Iowa construction. Since testing data for zip code 51440 remains limited, homeowners are strongly encouraged to test for radon to determine their individual exposure risk.
Dedham, IA 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 Dedham, IA
What EPA Radon Zone is Dedham in?
Dedham and the 51440 zip code are in Carroll County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Dedham?
Radon mitigation in Dedham 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 Dedham?
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 Iowa
Cities in Iowa with the most user-submitted radon test data, ranked by number of submissions.