Ellendale, DE Radon Mitigation and Testing

Q: What EPA Radon Zone is Ellendale in?

Ellendale is in Sussex County, EPA Zone 3.

Q: How much does radon mitigation cost in Ellendale?

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

Sussex County

EPA Zone 3

Situated in Sussex County in southern Delaware's agricultural region, Ellendale lies over Coastal Plain sediments where radon levels generally remain low but can vary depending on specific soil conditions and home construction. Housing in zip code 19941 includes both traditional Delaware farmhouses and newer suburban development with diverse foundation types. With local radon testing data currently limited, homeowners should consider testing to establish baseline readings for their properties.

Ellendale, DE Radon Mitigation

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

Ellendale, DE Radon Testing

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

Ellendale Radon Facts

Key details about the radon risk profile for Ellendale and the 19941 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Sussex County, DE

Zip Code

19941

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Ellendale and the 19941 zip code are located in Sussex County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Ellendale, DE

What EPA Radon Zone is Ellendale in?

Ellendale and the 19941 zip code are in Sussex 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 Ellendale?

Radon mitigation in Ellendale 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 Ellendale?

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