Roof replacement cost calculator

Estimate a roof replacement cost in seconds

Enter the roof size, pitch, material, and how many old layers come off. You will get a ballpark cost range to sanity-check a quote before you write it up.

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Roof details

Adjust these to match the job.

Roof surface area, not the home’s footprint.

That’s about 20.0 squares of roof.

How many old roof layers come off before installing.

Estimated replacement cost

$11,550 – $17,300

Midpoint around $14,425 · roughly $578$865 per square installed.

What’s in this estimate

Roof size
20.0 squares
Material & install range
Architectural / dimensional shingles
Pitch adjustment
×1.15
Tear-off & disposal
$1,200

This is a rough estimate, not a quote. Real pricing depends on your local labor and material costs, access, decking condition, code requirements, and accessories like flashing, vents, and underlayment. Always measure the roof and price the full scope before sending a bid.

How roof replacement cost is calculated

Roofers price work in squares — one square equals 100 square feet of roof surface. This tool converts your roof size into squares, then multiplies by a typical installed cost per square for the material you pick, which already bundles in materials and labor.

Steeper and more cut-up roofs take longer and need more safety setup, so a pitch and complexity factor bumps the number up. Finally, tearing off and hauling away each existing layer adds a per-square cost on top.

The result is a low-to-high range. Your real number lands inside that range once you factor in your market, the decking condition, and the accessories the job needs.

Want to turn a ballpark like this into a branded estimate you can send and get signed from a phone? See the free roofing estimate template or how HailMate estimating works.

Estimate, send, and track every roof in one app

HailMate builds branded estimates, captures e-signatures, and follows the job through the whole claims pipeline.

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