Thiells, NY Radon Mitigation and Testing

Q: What is the average radon level in Thiells, NY?

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Thiells in?

Thiells is in Rockland County, EPA Zone 3.

Q: How much does radon mitigation cost in Thiells?

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

Avg: 4.00 pCi/L

Rockland County

EPA Zone 3

1 user test

Located in Rockland County within the New York City Metro area, Thiells sits on crystalline bedrock that produces variable radon levels across the region. Current testing shows an average radon level of 4.0 pCi/L, which meets the EPA action threshold, making professional testing recommended for all homes in zip code 10984.

4.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Thiells, NY Radon Mitigation

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

Thiells, NY Radon Testing

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

Thiells, New York Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Thiells, NY	51-99 Years	Full Basement	May 2018

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

Thiells Radon Facts

Key details about the radon risk profile for Thiells and the 10984 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Rockland County, NY

Zip Code

10984

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Thiells and the 10984 zip code are located in Rockland 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 Thiells, NY

What is the average radon level in Thiells, NY?

Based on 1 user-submitted test, the average radon level in Thiells is 4.00 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 Thiells in?

Thiells and the 10984 zip code are in Rockland 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 Thiells?

Radon mitigation in Thiells 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 Thiells?

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 York

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

City	Avg User Radon Level	Submissions
Brooklyn	10.80 pCi/L	5
Oneonta	6.50 pCi/L	4
Clifton Park	3.75 pCi/L	4
Elmira	15.00 pCi/L	3
Saugerties	10.67 pCi/L	3
Staten Island	4.00 pCi/L	3
New York	9.00 pCi/L	2
Yonkers	8.00 pCi/L	2
Horseheads	7.50 pCi/L	2
Poughkeepsie	16.00 pCi/L	1
Buffalo	4.00 pCi/L	1
Pelham	3.00 pCi/L	1