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      Tarzana, CA Radon Levels

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

      Tarzana, CA Radon Facts

      EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
      County Los Angeles County, CA
      Zip Code 91356
      Avg. User Level 2.00 pCi/L
      User Tests 1

      Nestled in the San Fernando Valley within Los Angeles County, Tarzana shows an average radon level of 2.0 pCi/L based on available data from the 91356 zip code area. This reading falls within the EPA's recommended range, though testing remains important given California's varied geological conditions. The community's mix of mid-century ranch homes and newer construction sits on alluvial deposits that typically produce lower radon concentrations.

      2.00
      pCi/L average
      Below EPA Action Level

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

      0
      4.0 EPA
      10+

      Tarzana, CA Radon Mitigation

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

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      Tarzana, CA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      2 pCi/L Tarzana, CA 51-99 Years No Basement/All Slab

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

      Radon FAQ for Tarzana, CA

      What is the average radon level in Tarzana, CA?
      Based on 1 user-submitted test, the average radon level in Tarzana is 2.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.
      What EPA Radon Zone is Tarzana in?
      Tarzana and the 91356 zip code are in Los Angeles County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
      How much does radon mitigation cost in Tarzana?
      Radon mitigation in Tarzana 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 Tarzana?
      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 California

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

      CityAvg User Radon LevelSubmissions
      Los Angeles 7.83 pCi/L 6
      Mammoth Lakes 10.80 pCi/L 5
      San Jose 4.20 pCi/L 5
      Rancho Palos Verdes 8.00 pCi/L 4
      Bishop 6.25 pCi/L 4
      Oakland 5.00 pCi/L 4
      Woodland Hills 7.67 pCi/L 3
      South Lake Tahoe 6.33 pCi/L 3
      Palos Verdes Peninsula 6.00 pCi/L 3
      Sacramento 4.33 pCi/L 3

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578

      A licensed contractor will contact you immediately.

      * Required