Kailua, HI · 2026 cost guide
How much does a new roof cost in Kailua?
In Kailua, a new roof costs about $14,000–$32,500 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly $698.18–$1629.08 per square (100 sq ft). That’s about 7% above the Hawaii average.
Estimate your Kailua project with the Roofing Square Calculator →
Kailua cost breakdown
| Kailua typical range | $14,000–$32,500 |
| Kailua per square (100 sq ft) | $698.18–$1629.08 |
| Hawaii state average | $13,000–$30,500 |
| Versus Hawaii average | about 7% above average |
What’s different about Kailua
Kailua's windward coastal exposure brings salt air and humidity, and Oahu's high cost of living and shipped materials keep exterior pricing elevated.
- Coastal salt favors corrosion-resistant flashing and fasteners.
- Algae-resistant shingles are popular where humidity drives streaking.
- Permit fees and skilled-trade labor rates here run well above the national average — usually the single biggest cost driver.
How the cost is built
Roof cost scales with roof area (measured in 100 sq ft 'squares'), pitch, and material — asphalt shingles are the budget choice, while metal, tile, and slate run two to four times more. Steep or complex rooflines, multiple layers to tear off, and new decking or flashing all add to the total.
Frequently asked questions
How much does a new roof cost in Kailua?
In Kailua, a new roof costs about $14,000 to $32,500 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly 698.18–1629.08 per square (100 sq ft). That's about 7% above the Hawaii average, reflecting local labor and permit costs.
What affects the cost of a new roof in Kailua?
Kailua's windward coastal exposure brings salt air and humidity, and Oahu's high cost of living and shipped materials keep exterior pricing elevated. Coastal salt favors corrosion-resistant flashing and fasteners.
How can I get an accurate roof replacement estimate in Kailua?
Use the free Roofing Square Calculator to plug in your real measurements, then collect two or three local Kailua quotes to compare. Prices vary by neighborhood, access, and project complexity.
Roof replacement cost in other Hawaii metros
Keep planning
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Open calculator →The Kailua figure scales the Hawaii cost range by a local metro index, then adjusts for the city’s labor market and climate. A 2026 planning estimate, not a quote — get local bids. See our methodology.