Sitka, AK Radon Mitigation and Testing

Q: What EPA Radon Zone is Sitka in?

Sitka is in Sitka Borough County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Sitka?

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

Sitka Borough County

EPA Zone Unknown

Alaska's former capital city in the Sitka Borough lacks comprehensive radon data, though the state's unique geological conditions warrant testing consideration. Sitka's coastal location and granite-based geology may produce different radon patterns than seen in the continental United States. Homeowners should still test their properties, particularly those with basements or enclosed lower levels.

Sitka, AK Radon Mitigation

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

Sitka, AK Radon Testing

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

Sitka Radon Facts

Key details about the radon risk profile for Sitka and the 99835 zip code area.

EPA Radon Zone

Unknown

County

Sitka Borough County, AK

Zip Code

99835

Predicted Screening Level

Unknown

Sitka and the 99835 zip code are located in Sitka 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 Sitka, AK

What EPA Radon Zone is Sitka in?

Sitka and the 99835 zip code are in Sitka 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 Sitka?

Radon mitigation in Sitka 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 Sitka?

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