Mahwah, NJ Radon Mitigation and Testing

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

Based on 3 user-submitted tests, the average radon level is 5.30 pCi/L.

Q: What EPA Radon Zone is Mahwah in?

Mahwah is in Bergen County, EPA Zone 2.

Q: How much does radon mitigation cost in Mahwah?

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

Avg: 5.30 pCi/L

Bergen County

EPA Zone 2

3 user tests

Mahwah is located in Bergen County, New Jersey. With 3 user-submitted readings averaging 5.30 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 07430 zip code.

5.30

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Mahwah, NJ Radon Mitigation

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

Mahwah, NJ Radon Testing

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

Mahwah, New Jersey Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Mahwah, NJ	21-50 Years	Full Basement	Jun 2025
7 pCi/L	Mahwah, NJ	21-50 Years	Full Basement	Jun 2021
6 pCi/L	Mahwah, NJ	0-20 Years	Full Basement	Jun 2019

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

Mahwah Radon Facts

Key details about the radon risk profile for Mahwah and the 07430 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Bergen County, NJ

Zip Code

07430

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

5.30 pCi/L

User Tests Submitted

Mahwah and the 07430 zip code are located in Bergen 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 Mahwah, NJ

What is the average radon level in Mahwah, NJ?

Based on 3 user-submitted tests, the average radon level in Mahwah is 5.30 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Mahwah in?

Mahwah and the 07430 zip code are in Bergen 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 Mahwah?

Radon mitigation in Mahwah 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 Mahwah?

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