Roof Cost Calculator
Estimate a broad replacement-cost range using roof area, material, complexity, stories and tear-off.
What the estimate includes
The model uses broad installed-cost bands and then adjusts them for access and complexity. It is designed for early budgeting, not for signing a contract.
What can change the final cost
Underlayment, flashing, ventilation, decking repairs and manufacturer requirements.
Tear-off layers, disposal, access, height, pitch, permits and local labor.
Ready for a contractor-specific price?
A calculator gives you a planning range. Compare local quotes for a price based on your roof, location and project details.
Get Free Roofing QuotesNo obligation. Availability and matching depend on location and project details.
Frequently asked questions
Is this calculator a contractor quote?
No. It provides an educational planning range. A contractor must inspect the property and define the project scope.
Why is the range wide?
Roof access, pitch, decking condition, tear-off layers, permits, ventilation and local labor can materially change the final price.
Should I use house square footage as roof area?
Not exactly. Roof area is usually larger than the building footprint because of slope and overhangs.