Manhasset, NY Radon Levels

Q: What EPA Radon Zone is Manhasset in?

Manhasset is in Nassau County, EPA Zone 3.

Q: How much does radon mitigation cost in Manhasset?

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

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

Manhasset, NY Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Nassau County, NY

Zip Code 11030

This affluent Nassau County community on Long Island's Gold Coast sits within the New York City Metro area, characterized by glacial moraine deposits over bedrock that can influence residential radon levels. Manhasset's housing stock features many historic estates and mid-century homes, often with full basements and complex foundation systems that may allow radon entry. While specific testing data is limited for the 11030 zip code, the area's geological setting and basement-heavy housing suggest homeowners should prioritize radon testing.

Manhasset, NY Radon Mitigation

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

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Radon FAQ for Manhasset, NY

What EPA Radon Zone is Manhasset in?

Manhasset and the 11030 zip code are in Nassau 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 Manhasset?

Radon mitigation in Manhasset 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 Manhasset?

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

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