Roof Replacement Cost Calculator (By Sq Ft)
Estimate roof replacement cost by square footage, material type, and pitch, including tear-off, labor, and waste factors.
Tip: roof area is roughly 1.2× your home's floor area
Estimated Total Cost
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| Item | Cost |
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How Much Does a New Roof Cost?
A full roof replacement typically costs $7,000 to $30,000 for the average home. Asphalt shingles are the most affordable option at $3.50–5.50 per square foot installed, while premium materials like natural slate can exceed $20 per square foot.
Roofing Material Comparison
| Material | Cost/sq ft | Lifespan | Best For |
|---|---|---|---|
| Asphalt Shingles | $3.50–$5.50 | 20–30 years | Most homes — best value |
| Standing Seam Metal | $7–$14 | 40–70 years | Longevity, energy efficiency |
| Clay/Concrete Tile | $8–$16 | 50–100 years | Hot climates, Mediterranean style |
| Natural Slate | $15–$25 | 75–150 years | Historic and luxury homes |
Factors That Affect Cost
- Roof pitch — Steeper roofs require more safety equipment and labor time, adding 15–35% to the cost.
- Tear-off — Removing old roofing adds $1–2 per square foot. Some areas allow a second layer over existing shingles.
- Height — Multi-story homes cost more due to scaffolding and increased labor difficulty.
- Complexity — Dormers, valleys, skylights, and chimneys all add to the labor cost.