Ketchikan, AK Radon Mitigation and Testing

Q: What EPA Radon Zone is Ketchikan in?

Ketchikan is in Ketchikan Gateway Borough County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Ketchikan?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Ketchikan Gateway Borough County

EPA Zone Unknown

Situated in southeastern Alaska's Ketchikan Gateway Borough, Ketchikan sits on complex coastal geology where marine sediments meet volcanic and metamorphic bedrock. While radon testing data for zip code 99901 is currently limited, Alaska's diverse geological conditions warrant individual property assessment. The community's unique setting, with homes built on various foundation types from pilings to full basements, makes professional radon testing valuable for understanding specific exposure levels.

Ketchikan, AK Radon Mitigation

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

Ketchikan, AK Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Ketchikan Radon Facts

Key details about the radon risk profile for Ketchikan and the 99901 zip code area.

EPA Radon Zone

Unknown

County

Ketchikan Gateway Borough County, AK

Zip Code

99901

Predicted Screening Level

Unknown

Ketchikan and the 99901 zip code are located in Ketchikan Gateway Borough County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Ketchikan, AK

What EPA Radon Zone is Ketchikan in?

Ketchikan and the 99901 zip code are in Ketchikan Gateway Borough County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

How much does radon mitigation cost in Ketchikan?

Radon mitigation in Ketchikan 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 Ketchikan?

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 Alaska

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Anchorage	5.00 pCi/L	5
Palmer	9.00 pCi/L	4
Eagle River	9.33 pCi/L	3
Wasilla	5.00 pCi/L	1