Denville, NJ Radon Mitigation and Testing

Q: What is the average radon level in Denville, NJ?

Based on 3 user-submitted tests, the average radon level is 3.70 pCi/L.

Q: What EPA Radon Zone is Denville in?

Denville is in Morris County, EPA Zone 1.

Q: How much does radon mitigation cost in Denville?

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

Avg: 3.70 pCi/L

Morris County

EPA Zone 1

3 user tests

Denville is located in Morris County, New Jersey. With 3 user-submitted readings averaging 3.70 pCi/L, levels are currently 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.

3.70

pCi/L average

Below EPA Action Level

Based on 3 user-submitted radon tests for homes in Denville, NJ. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Denville, NJ Radon Mitigation

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

Denville, NJ Radon Testing

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

Denville, New Jersey Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
1 pCi/L	Denville, NJ	51-99 Years	Full Basement	Jul 2019
4 pCi/L	Denville, NJ	0-20 Years	Full Basement	Apr 2016

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

Denville Radon Facts

Key details about the radon risk profile for Denville and the 07834 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Morris County, NJ

Zip Code

07834

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

3.70 pCi/L

User Tests Submitted

Denville and the 07834 zip code are located in Morris County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Denville, NJ

What is the average radon level in Denville, NJ?

Based on 3 user-submitted tests, the average radon level in Denville is 3.70 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 Denville in?

Denville and the 07834 zip code are in Morris 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 Denville?

Radon mitigation in Denville 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 Denville?

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 New Jersey

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

City	Avg User Radon Level	Submissions
Cherry Hill	6.44 pCi/L	9
Hillsborough	6.14 pCi/L	7
Freehold	10.50 pCi/L	6
Marlboro	6.17 pCi/L	6
Bernardsville	7.00 pCi/L	5
Phillipsburg	7.00 pCi/L	5
Edison	5.60 pCi/L	5
Princeton	5.40 pCi/L	5
Sussex	9.75 pCi/L	4
Piscataway	6.75 pCi/L	4
Caldwell	5.00 pCi/L	4
Atlantic Highlands	4.75 pCi/L	4
West Orange	4.00 pCi/L	4
Basking Ridge	3.75 pCi/L	4
Hackettstown	3.75 pCi/L	4
Livingston	3.25 pCi/L	4
Nutley	3.25 pCi/L	4
Sicklerville	7.00 pCi/L	3
Clifton	6.00 pCi/L	3
Westfield	6.00 pCi/L	3