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      Holtsville, NY Radon Levels

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

      Holtsville, NY Radon Facts

      EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
      County Suffolk County, NY
      Zip Code 11742
      Avg. User Level 5.00 pCi/L
      User Tests 1

      Holtsville in Suffolk County has recorded an elevated average radon level of 5.0 pCi/L, exceeding the EPA action threshold and warranting professional mitigation consideration. This New York City Metro community in zip code 11742 sits on Long Island's glacial outwash deposits over Cretaceous formations, geological conditions that can create variable radon accumulation depending on soil permeability and water table fluctuations. Homeowners should prioritize testing and mitigation consultation given these concerning levels in the area's suburban housing stock.

      5.00
      pCi/L average
      Above EPA Action Level

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

      0
      4.0 EPA
      10+

      Holtsville, NY Radon Mitigation

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

      Need Radon Mitigation or Testing in Holtsville?

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      Holtsville, NY Radon Levels

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

      Radon LevelCityHome AgeFoundation
      5 pCi/L Holtsville, NY — Full Basement

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

      Radon FAQ for Holtsville, NY

      What is the average radon level in Holtsville, NY?
      Based on 1 user-submitted test, the average radon level in Holtsville is 5.00 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 Holtsville in?
      Holtsville and the 11742 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 Holtsville?
      Radon mitigation in Holtsville 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 Holtsville?
      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.

      CityAvg User Radon LevelSubmissions
      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

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578 Local: 845-208-0292

      A licensed contractor will contact you immediately.

      * Required