Dover, DE · 2026 cost guide
How much does a new roof cost in Dover?
In Dover, a new roof costs about $9,100–$21,000 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly $454.23–$1059.87 per square (100 sq ft). That’s in line with the Delaware average.
Estimate your Dover project with the Roofing Square Calculator →
Dover cost breakdown
| Dover typical range | $9,100–$21,000 |
| Dover per square (100 sq ft) | $454.23–$1059.87 |
| Delaware state average | $9,300–$21,500 |
| Versus Delaware average | in line with average |
What’s different about Dover
Dover has a lower cost of living and smaller contractor market, keeping labor moderate, though coastal humidity drives exterior maintenance.
- Algae-resistant shingles are popular where humidity drives streaking.
- Coastal salt favors corrosion-resistant flashing and fasteners.
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 Dover?
In Dover, a new roof costs about $9,100 to $21,000 in 2026 for a 1,800 sq ft (about 20-square) asphalt-shingle roof, tear-off included — roughly 454.23–1059.87 per square (100 sq ft). That's in line with the Delaware average, reflecting local labor and permit costs.
What affects the cost of a new roof in Dover?
Dover has a lower cost of living and smaller contractor market, keeping labor moderate, though coastal humidity drives exterior maintenance. Algae-resistant shingles are popular where humidity drives streaking.
How can I get an accurate roof replacement estimate in Dover?
Use the free Roofing Square Calculator to plug in your real measurements, then collect two or three local Dover quotes to compare. Prices vary by neighborhood, access, and project complexity.
Roof replacement cost in other Delaware metros
Keep planning
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Open calculator →The Dover figure scales the Delaware 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.