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      Bellingham, WA Radon Levels

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

      Bellingham, WA Radon Facts

      EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
      County Whatcom County, WA
      Zip Code 98225
      Avg. User Level 4.50 pCi/L
      User Tests 2

      Located in Whatcom County near the Canadian border, Bellingham has recorded an average radon level of 4.5 pCi/L, slightly exceeding the EPA's 4.0 pCi/L action threshold and indicating that radon mitigation may be beneficial for local homes. The area's glacial deposits and proximity to the Cascade foothills create geological conditions that can concentrate radon gas in residential structures. Homeowners in zip codes 98225 and surrounding areas should consider professional testing and potential mitigation systems.

      4.50
      pCi/L average
      Above EPA Action Level

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

      0
      4.0 EPA
      10+

      Bellingham, 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 Bellingham?

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      Bellingham, WA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      5 pCi/L Bellingham, WA 0-20 Years Full Basement
      4 pCi/L Bellingham, WA 0-20 Years —

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

      Radon FAQ for Bellingham, WA

      What is the average radon level in Bellingham, WA?
      Based on 2 user-submitted tests, the average radon level in Bellingham 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 Bellingham in?
      Bellingham and the 98225 zip code are in Whatcom 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 Bellingham?
      Radon mitigation in Bellingham 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 Bellingham?
      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: 206-973-0096

      A licensed contractor will contact you immediately.

      * Required