Waialua, HI Radon Mitigation and Testing

Q: What EPA Radon Zone is Waialua in?

Waialua is in Honolulu County, EPA Zone 3.

Q: How much does radon mitigation cost in Waialua?

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

Honolulu County

EPA Zone 3

Located on Oahu's north shore in Honolulu County, Waialua sits on coral limestone and volcanic soils that typically produce very low radon levels characteristic of Hawaiian coastal areas. Testing data for zip code 96791 is sparse, though the geological foundation generally results in minimal radon concerns. The area's plantation-era homes and beachfront properties both benefit from occasional evaluation.

Waialua, HI Radon Mitigation

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

Waialua, HI Radon Testing

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

Waialua Radon Facts

Key details about the radon risk profile for Waialua and the 96791 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Honolulu County, HI

Zip Code

96791

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Waialua and the 96791 zip code are located in Honolulu County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Waialua, HI

What EPA Radon Zone is Waialua in?

Waialua and the 96791 zip code are in Honolulu 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 Waialua?

Radon mitigation in Waialua 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 Waialua?

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 Hawaii

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

City	Avg User Radon Level	Submissions
Honolulu	No submissions	0