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      Santa Barbara, CA Radon Levels

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

      Santa Barbara, CA Radon Facts

      EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
      County Santa Barbara County, CA
      Zip Code 93101
      Avg. User Level 3.00 pCi/L
      User Tests 1

      Perched along California's coast in Santa Barbara County within the Santa Maria Metro area, Santa Barbara is built on marine terraces and alluvial deposits beneath the Santa Ynez Mountains. The city's diverse housing stock spans from historic adobes to modern coastal homes, with many properties featuring concrete slab foundations and some hillside homes built with basement spaces. Testing data indicates an average radon level of 3.0 pCi/L, which falls within the EPA's acceptable range, though homeowners should still consider testing as coastal geological conditions can create localized variations.

      3.00
      pCi/L average
      Below EPA Action Level

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

      0
      4.0 EPA
      10+

      Santa Barbara, CA Radon Mitigation

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

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      Santa Barbara, CA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      3 pCi/L Santa Barbara, CA 51-99 Years No Basement/All Crawl Space

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

      Radon FAQ for Santa Barbara, CA

      What is the average radon level in Santa Barbara, CA?
      Based on 1 user-submitted test, the average radon level in Santa Barbara is 3.00 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 Santa Barbara in?
      Santa Barbara and the 93101 zip code are in Santa Barbara County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
      How much does radon mitigation cost in Santa Barbara?
      Radon mitigation in Santa Barbara 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 Santa Barbara?
      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