Radon Mitigation Cost

Hawaii · 2026 pricing

Radon mitigation cost in Hawaii

A typical sub-slab system in an 1,800 sqft full-basement home at 6 pCi/L in Hawaii: $1,803$5,313 · state cost factor 1.50×.

EPA radon zone summary: Zone 3 (low — < 2 pCi/L). Hawaii is Zone 3 statewide — radon mitigation demand minimal.

See NRPP/NRSB-certified mitigators in Hawaii

Radon Mitigation Cost Calculator

6
1,800

Estimated cost

$1,113$3,479

Typical: $2,087 · state factor 1.10×

Line items

  • System — Sub-slab depressurization (most common)$2,087
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Estimates are educational — actual quotes from local pros may differ based on site conditions, permits, and seasonal demand.

Why Hawaii runs above the US average

Radon mitigation pricing in Hawaii reflects three regional factors: licensed HVAC / specialty trade wages (BLS), EPA Zone density (Zone-1 states have mature mitigator markets and competitive pricing), and state-specific permitting / disclosure requirements. The 1.50× factor is calibrated from 2025 AARST + HomeAdvisor regional rate data.

Local note · Hawaii: Zone 3 statewide — radon mitigation demand minimal. Very few certified mitigators.

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