Claymont, DE Radon Levels
Check local Claymont radon levels and find certified testing and mitigation professionals to keep your home safe
Claymont, DE Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
New Castle County, DE
Zip Code
19703
Located in northern New Castle County within the Philadelphia Metro area, Claymont sits in EPA Zone 2 where radon testing data is currently limited. The community's proximity to Piedmont geological formations and coastal plain sediments creates variable soil conditions that can influence radon levels from home to home. Residents in zip code 19703 should conduct radon testing, particularly in the area's older housing stock with basement foundations common to the region.
Claymont, DE Radon Mitigation
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Radon FAQ for Claymont, DE
What EPA Radon Zone is Claymont in?
Claymont and the 19703 zip code are in New Castle County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Claymont?
Radon mitigation in Claymont 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 Claymont?
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 Delaware
Cities in Delaware with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Middletown | 7.43 pCi/L | 7 |
| Wilmington | 5.50 pCi/L | 4 |
| Lewes | 6.00 pCi/L | 1 |
| New Castle | 4.00 pCi/L | 1 |
| Newark | No submissions | 0 |