Roofing Cost Calculator
Estimate roof replacement costs by ZIP code, roof area, material, pitch, stories, tear-off and complexity.
Pricing methodology reviewed August 2026 · Planning confidence range shown with every result
What this estimate includes
The calculator separates common material, professional labor, disposal, permit allowance and contingency costs. It also accounts for the project conditions selected above. Sales tax, engineering, hidden damage and unusual access may require additional allowances.
How to use your result
- Confirm measurements at the project site.
- Compare at least two material choices.
- Print the report and request three local written quotes.
- Ask each contractor to identify exclusions, permit responsibility and cleanup.
Frequently asked questions
What is a roofing square?
A roofing square is 100 square feet of roof surface. Ordering also needs starter, ridge, valley and waste allowances that are not captured by dividing the area by 100 alone.
How does roof pitch affect labor?
Steeper roofs can require additional fall protection, staging and slower material handling. Pitch also increases actual roof surface compared with the building footprint.
Should old shingles be removed?
Tear-off exposes the deck for inspection and avoids adding another roof layer, but local codes and existing conditions determine what is allowed. Include disposal and a unit price for damaged decking.