Calculator
Roofing Cost Calculator
Estimate roof replacement cost by roof size, material, pitch, tear-off, and complexity with a client-side roofing calculator.
Cost drivers
- Roof surface area sets the base quantity of shingles, underlayment, flashing, and labor.
- Material choice changes both product cost and installation pace; metal and cedar usually require more budget than architectural asphalt.
- Pitch, valleys, dormers, tear-off, and safe access increase labor before any hidden decking repairs are known.
Example cost scenarios
- A 2,000 sq ft simple asphalt roof with standard pitch and tear-off models as a common replacement starting point.
- A steep 2,600 sq ft metal roof with complex geometry models much higher because material and labor multipliers stack.
How to use this calculator
- Enter roof surface area if you know it; do not use living area as a one-to-one substitute.
- Choose the closest material, pitch, tear-off, and complexity selections, then compare the full range rather than only the midpoint.
- Use contractor inspections to confirm decking, ventilation, flashing, and permit needs before committing to a budget.
Assumptions
- Includes typical labor, underlayment, flashing allowance, and disposal when selected.
- Excludes major decking repair, structural work, skylights, and permit fees.
- Range widens for steep or complex roofs because access and cut-up geometry slow production.
FAQ
How accurate is this roofing estimate?
It is a planning range, not a contractor bid. Hidden decking damage, ventilation upgrades, and site access can move the final price.
What roof size should I enter?
Use roof surface area when known. If you only know house footprint, roof area is usually higher because of pitch and overhangs.
Estimates are informational planning ranges only, not quotes, offers, guarantees, or professional advice.