Seaford, NY Radon Levels

Q: What EPA Radon Zone is Seaford in?

Seaford is in Nassau County, EPA Zone 3.

Q: How much does radon mitigation cost in Seaford?

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

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

Seaford, NY Radon Facts

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

County Nassau County, NY

Zip Code 11783

This Nassau County community on Long Island's South Shore, part of the New York City Metro area, falls within EPA Zone 3, reflecting the area's coastal plain geology. Testing data for the 11783 zip code remains limited, encouraging homeowners to pursue professional radon testing for baseline measurements. Long Island's complex glacial and marine geological history can create variable radon conditions, making individual property testing important.

Seaford, 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 Seaford, NY

What EPA Radon Zone is Seaford in?

Seaford and the 11783 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 Seaford?

Radon mitigation in Seaford 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 Seaford?

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