Randolph, NJ Radon Levels

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

Based on 3 user-submitted tests, the average radon level is 4.30 pCi/L.

Q: What EPA Radon Zone is Randolph in?

Randolph is in Morris County, EPA Zone 1.

Q: How much does radon mitigation cost in Randolph?

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

Check local Randolph radon levels and find certified testing and mitigation professionals to keep your home safe

Randolph, NJ Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Morris County, NJ

Zip Code 07869

Avg. User Level 4.30 pCi/L

User Tests 3

Nestled in Morris County within the New York City Metro area, Randolph sits on glacial deposits over bedrock formations that contribute to elevated radon potential. The township's predominantly suburban housing stock features full basements typical of mid-Atlantic construction, providing enclosed spaces where radon can accumulate. Local testing shows an average radon level of 4.33 pCi/L, which exceeds the EPA action level of 4.0 pCi/L and warrants mitigation consideration.

4.30

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Randolph, NJ Radon Mitigation

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Randolph, NJ Radon Levels

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

Radon Level	City	Home Age	Foundation
4 pCi/L	Randolph, NJ	51-99 Years	Full Basement
5 pCi/L	Randolph, NJ	21-50 Years	—

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Radon FAQ for Randolph, NJ

What is the average radon level in Randolph, NJ?

Based on 3 user-submitted tests, the average radon level in Randolph is 4.30 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 Randolph in?

Randolph and the 07869 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 Randolph?

Radon mitigation in Randolph 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 Randolph?

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 in New Jersey with the most user-submitted radon test data, ranked by number of submissions.

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

Randolph, NJ Radon Levels

Check local Randolph radon levels and find certified testing and mitigation professionals to keep your home safe

Randolph, NJ Radon Facts

Randolph, NJ Radon Mitigation

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Randolph, NJ Radon Levels

Radon FAQ for Randolph, NJ

Most Active Radon Markets in New Jersey

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