Charleston, SC · 2026 cost guide
How much does a new roof cost in Charleston?
In Charleston, a new roof costs about $8,500–$20,000 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly $426.42–$994.98 per square (100 sq ft). That’s about 3% above the South Carolina average.
Estimate your Charleston project with the Roofing Square Calculator →
Charleston cost breakdown
| Charleston typical range | $8,500–$20,000 |
| Charleston per square (100 sq ft) | $426.42–$994.98 |
| South Carolina state average | $8,300–$19,500 |
| Versus South Carolina average | about 3% above average |
What’s different about Charleston
Charleston's coastal location brings hurricane wind codes, salt-air corrosion, and historic-district review that raise pricing above the inland state.
- Hurricane codes require wind-rated shingles, extra fasteners, and sealed decking.
- Algae-resistant shingles are popular where humidity drives streaking.
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 Charleston?
In Charleston, a new roof costs about $8,500 to $20,000 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly 426.42–994.98 per square (100 sq ft). That's about 3% above the South Carolina average, reflecting local labor and permit costs.
What affects the cost of a new roof in Charleston?
Charleston's coastal location brings hurricane wind codes, salt-air corrosion, and historic-district review that raise pricing above the inland state. Hurricane codes require wind-rated shingles, extra fasteners, and sealed decking.
How can I get an accurate roof replacement estimate in Charleston?
Use the free Roofing Square Calculator to plug in your real measurements, then collect two or three local Charleston quotes to compare. Prices vary by neighborhood, access, and project complexity.
Roof replacement cost in other South Carolina metros
Keep planning
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Open calculator →The Charleston figure scales the South Carolina 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.