Claymont, DE Radon Mitigation and Testing

Q: What EPA Radon Zone is Claymont in?

Claymont is in New Castle County, EPA Zone 2.

Q: How much does radon mitigation cost in Claymont?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

New Castle County

EPA Zone 2

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

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Claymont, DE Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Claymont Radon Facts

Key details about the radon risk profile for Claymont and the 19703 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

New Castle County, DE

Zip Code

19703

Predicted Screening Level

2–4 pCi/L (Zone 2)

Claymont and the 19703 zip code are located in New Castle County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

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 with the most user-submitted radon test data in the state.

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