Roof Replacement Cost Calculator
A roof replacement cost calculator estimates the price to replace an existing roof by sizing the roofing squares and multiplying by your price per square, then adding the tear-off of the old roof. Enter your roof area, pitch, price per square and tear-off cost below for an estimated replacement total.
adds tear-off cost per square to the install estimate. Prices user-entered.
Enter the footprint and pitch to size the roof.
Estimate only. Prices vary by region, supplier, material grade and labor. Enter your own local price; this site never quotes prices.
How Much Does Roof Replacement Cost?
Roof replacement cost combines the new roofing (squares times your price per square) and the tear-off and disposal of the old roof, plus any deck repairs found underneath. Replacement costs more than a new-build roof because of the removal step. The calculator separates the install and tear-off so you see both, using the prices you enter, since the figures vary widely by region and material.
Does Tear-Off Add a Lot to Roof Cost?
Tear-off adds a meaningful amount, because removing the old shingles, hauling them away and disposing of them takes labor and dumpster fees, charged per square. Some roofs allow a layover (new shingles over old) to skip tear-off, but tear-off gives a better result and is often required by code after two layers. The calculator lets you enter a tear-off cost per square so the estimate reflects your situation.
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Frequently asked questions
- How much does it cost to replace a roof?
- It combines the new roofing (squares times price per square) plus tear-off and disposal of the old roof. Enter your local prices for an estimate; figures vary widely by material and region.
- Does tear-off add to roof replacement cost?
- Yes, removing and disposing of the old roof adds labor and dumpster fees per square. The calculator lets you enter a tear-off cost separately.