Central Islip, NY Radon Mitigation and Testing

Q: What EPA Radon Zone is Central Islip in?

Central Islip is in Suffolk County, EPA Zone 3.

Q: How much does radon mitigation cost in Central Islip?

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

Suffolk County

EPA Zone 3

Located in Suffolk County within the New York City Metro area, Central Islip sits in EPA Zone 3 where lower radon levels are generally expected. Long Island's sandy soils and glacial outwash typically limit radon accumulation, though individual homes can still experience elevated levels. Testing data for zip code 11722 is currently unavailable, so homeowners should still consider radon assessment for peace of mind.

Central Islip, NY Radon Mitigation

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

Central Islip, NY Radon Testing

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

Central Islip Radon Facts

Key details about the radon risk profile for Central Islip and the 11722 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Suffolk County, NY

Zip Code

11722

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Central Islip and the 11722 zip code are located in Suffolk 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 Central Islip, NY

What EPA Radon Zone is Central Islip in?

Central Islip and the 11722 zip code are in Suffolk 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 Central Islip?

Radon mitigation in Central Islip 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 Central Islip?

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