Hockessin, DE Radon Mitigation and Testing

Q: What is the average radon level in Hockessin, DE?

Based on 1 user-submitted tests, the average radon level is 3.00 pCi/L.

Q: What EPA Radon Zone is Hockessin in?

Hockessin is in New Castle County, EPA Zone 2.

Q: How much does radon mitigation cost in Hockessin?

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

Avg: 3.00 pCi/L

New Castle County

EPA Zone 2

1 user test

Located in New Castle County within the Philadelphia Metro area, Hockessin shows an average radon level of 3.0 pCi/L based on recent testing. This upscale suburban community sits on Piedmont geological formations that can produce variable radon levels depending on local soil composition and housing characteristics. While current readings fall within EPA-recommended ranges, the area's mix of newer construction and established homes warrants ongoing radon monitoring.

3.00

pCi/L average

Below EPA Action Level

Based on 1 user-submitted radon test for homes in Hockessin, DE. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Hockessin, DE Radon Mitigation

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

Hockessin, DE Radon Testing

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

Hockessin, Delaware Radon Levels

User-submitted radon test readings from homes in the Hockessin area.

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Hockessin, DE	0-20 Years	Full Basement	Sep 2025

Have a radon test result for Hockessin? Submit your reading to help other homeowners.

Hockessin Radon Facts

Key details about the radon risk profile for Hockessin and the 19707 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

New Castle County, DE

Zip Code

19707

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

3.00 pCi/L

User Tests Submitted

Hockessin and the 19707 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 Hockessin, DE

What is the average radon level in Hockessin, DE?

Based on 1 user-submitted test, the average radon level in Hockessin is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is Hockessin in?

Hockessin and the 19707 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 Hockessin?

Radon mitigation in Hockessin 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 Hockessin?

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