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      Topsham, ME Radon Levels

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

      Topsham, ME Radon Facts

      EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
      County Sagadahoc County, ME
      Zip Code 04086
      Avg. User Level 3.00 pCi/L
      User Tests 1

      Topsham in Sagadahoc County within the Portland Metro area shows an average radon level of 3.0 pCi/L, which falls within EPA recommended guidelines but still warrants homeowner attention. This Kennebec River community in zip code 04086 sits on marine clay deposits over granite bedrock that can produce variable radon conditions. The town's mix of historic shipbuilding-era homes and modern construction means testing remains important for all residents.

      3.00
      pCi/L average
      Below EPA Action Level

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

      0
      4.0 EPA
      10+

      Topsham, ME 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 Topsham?

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      Topsham, ME Radon Levels

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

      Radon LevelCityHome AgeFoundation
      3 pCi/L Topsham, ME 51-99 Years Full Basement

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

      Radon FAQ for Topsham, ME

      What is the average radon level in Topsham, ME?
      Based on 1 user-submitted test, the average radon level in Topsham 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 Topsham in?
      Topsham and the 04086 zip code are in Sagadahoc 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 Topsham?
      Radon mitigation in Topsham 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 Topsham?
      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 Maine

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

      CityAvg User Radon LevelSubmissions
      Rumford 6.00 pCi/L 4
      York 8.50 pCi/L 2
      Saco 7.50 pCi/L 2
      Hampden 4.50 pCi/L 2
      Scarborough 14.00 pCi/L 1
      Kittery 12.00 pCi/L 1
      South Portland 10.00 pCi/L 1
      Portland 4.00 pCi/L 1

      Free Radon Mitigation Quote

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578 Local: 207-514-7583

      A licensed contractor will contact you immediately.

      * Required