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      Kirkland, WA Radon Levels

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

      Kirkland, WA Radon Facts

      EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
      County King County, WA
      Zip Code 98033
      Avg. User Level 4.50 pCi/L
      User Tests 2

      Established in King County on Seattle's Eastside, Kirkland sits on glacial deposits and marine sediments that generally produce moderate radon levels. Recent testing across zip codes 98033 and 98034 shows an average of 4.5 pCi/L, slightly exceeding the EPA's 4.0 pCi/L action threshold. Homeowners should consider radon testing and potential mitigation, especially in properties with daylight basements common to Pacific Northwest construction in the Seattle metro area.

      4.50
      pCi/L average
      Above EPA Action Level

      Based on 2 user-submitted radon tests for homes in Kirkland, WA. The EPA recommends taking action at or above 4.0 pCi/L.

      0
      4.0 EPA
      10+

      Kirkland, WA 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 Kirkland?

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      Kirkland, WA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      5 pCi/L Kirkland, WA 0-20 Years Full Basement
      4 pCi/L Kirkland, WA 51-99 Years Full Basement

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

      Radon FAQ for Kirkland, WA

      What is the average radon level in Kirkland, WA?
      Based on 2 user-submitted tests, the average radon level in Kirkland is 4.50 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 Kirkland in?
      Kirkland and the 98033 zip code are in King 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 Kirkland?
      Radon mitigation in Kirkland 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 Kirkland?
      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 Washington

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

      CityAvg User Radon LevelSubmissions
      Vancouver 6.56 pCi/L 9
      Kent 3.50 pCi/L 6
      Olympia 7.00 pCi/L 5
      Seattle 5.25 pCi/L 4
      Bellevue 3.75 pCi/L 4
      Spokane 11.67 pCi/L 3
      Camas 8.00 pCi/L 3
      Centralia 7.00 pCi/L 3
      Bellingham 4.50 pCi/L 2
      Kirkland 4.50 pCi/L 2

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578 Local: 509-202-4296

      A licensed contractor will contact you immediately.

      * Required