Exterior Projects
Roof Replacement Cost Calculator
Use this roof replacement calculator to estimate a roofing project before requesting bids. Roof shape, pitch, material, and tear-off needs can substantially affect the final price.
Free planning tool
Estimated Project Range
Low$16,832
Average$19,572
High$22,312
Cost per sq ft$9
Cost Breakdown
Material$9,240
Labor$5,729
Tear-off and disposal$3,520
Complexity$314
Permits and other$770
What affects this estimate
- Roof slope, layers, access, flashing, and decking repairs can change bids.
- Use roof surface area, not home floor area, when possible.
Assumptions You Can Adjust
- Roof area should include slope, overhangs, waste, and accessory areas when known.
- Complex roofs with valleys, dormers, skylights, or steep slopes require more labor.
- This calculator provides a general estimate for planning purposes only. Actual costs may vary based on your location, labor rates, material choices, permits, contractor pricing, and project complexity. This is not professional construction, financial, or legal advice.
What Can Make the Cost Higher
- Material choice has a wide range, from asphalt shingles to slate.
- Steep pitch, multiple layers, damaged decking, and difficult access increase labor.
- Local codes may require underlayment, ventilation, or permit upgrades.
How to Reduce Cost
- Schedule during a less busy season if local demand allows.
- Compare material warranties and installation requirements.
- Clarify whether decking repairs are included or priced separately.
When to Call a Professional
- Roofing work is safety-sensitive and typically requires licensed, insured contractors.
- Ask contractors to inspect flashing, ventilation, and roof deck condition.
Common Mistakes to Avoid
- Using home floor area instead of roof surface area.
- Ignoring tear-off, disposal, flashing, and ventilation.
- Choosing a bid without checking insurance and warranty terms.
Example Calculation
A 2,200 sq ft asphalt shingle roof with standard pitch and tear-off included can be compared against metal roofing by changing one field.
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Important Disclaimer
This calculator provides a general estimate for planning purposes only. Actual costs may vary based on your location, labor rates, material choices, permits, contractor pricing, and project complexity. This is not professional construction, financial, or legal advice.