Roof Replacement Cost in 2026

Roof costs are often priced per square (100 sq ft). Total depends on squares, pitch, tear-off layers, and decking repairs.

Typical per-square ranges (architectural shingles)

Install pricing: ~$350 – $650 per square (varies by region)
Two-layer tear-off: often adds ~$40 – $90 per square
Steep pitch: often adds 10% – 30%+

What increases roof cost the most

Steep pitch and difficult access
Multiple tear-off layers
Decking repair/replacement
Complex valleys/hips/dormers
Upgraded underlayment/ventilation

How to get cleaner quotes

Ask for the number of squares and the tear-off layers included.
Confirm underlayment, flashing, drip edge, and ventilation scope.
Get any decking repair terms in writing (allowance vs per-sheet).

Use the calculator

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