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How much does a roof replacement cost?
Our current planning model estimates $11,650 to $21,000 for a 2,000-square-foot architectural asphalt roof before a state-specific adjustment. That equals approximately $5.83 to $10.50 per square foot of measured roof area.
The final price depends on more than square footage. Material, roof pitch, roof shape, access, old layers, waste, decking repairs, flashing, ventilation, permits, labor demand, and warranty scope can all change a contractor's number. Use this page to understand those inputs, then use the calculator for a property-based range.
Roof replacement cost by roofing material
Roofing is usually measured in squares, with one square equal to 100 square feet of roof surface. Material choice changes both product and installation costs, so comparisons should use the complete installed system rather than bundle prices alone.
| Roofing material | Cost per sq ft* | 2,000 sq ft range* | Typical lifespan |
|---|---|---|---|
| Architectural asphalt | $5.83–$10.50 | $11,650–$21,000 | 25–30 years |
| Impact-resistant shingle | $7.55–$12.20 | $15,100–$24,400 | 30–40 years |
| Standing-seam metal | $10.90–$20.10 | $21,800–$40,200 | 40–70 years |
| Synthetic slate | $9.80–$17.30 | $19,600–$34,600 | 40–50 years |
*Illustrative installed-cost output using identical roof-size, pitch, complexity, and national baseline assumptions.
Architectural asphalt
Dimensional shingles with strong everyday value. In our current model, a 2,000-square-foot example produces a planning range of $11,650 to $21,000. Product line, fastening system, accessories, warranty, and installer requirements can move a real quote outside that range.
Impact-resistant shingle
Class 4-style protection for hail-prone markets. In our current model, a 2,000-square-foot example produces a planning range of $15,100 to $24,400. Product line, fastening system, accessories, warranty, and installer requirements can move a real quote outside that range.
Standing-seam metal
Long-life concealed-fastener metal panels. In our current model, a 2,000-square-foot example produces a planning range of $21,800 to $40,200. Product line, fastening system, accessories, warranty, and installer requirements can move a real quote outside that range.
Synthetic slate
Composite slate character without natural-stone weight. In our current model, a 2,000-square-foot example produces a planning range of $19,600 to $34,600. Product line, fastening system, accessories, warranty, and installer requirements can move a real quote outside that range.
Roof replacement labor and project costs
Labor is not one flat line item. A crew must protect the property, remove the existing roof, inspect the deck, install water-control layers, place the finished material, handle roof penetrations, clean the site, and document the completed system. Steep, tall, or difficult-to-access roofs require more time and safety planning.
When comparing contractor proposals, confirm that each one addresses the same scope:
- Removal, hauling, and disposal of the included existing layers
- Underlayment, leak barrier, starter course, drip edge, and flashing
- Intake and exhaust ventilation needed for the proposed roof system
- Decking-repair unit price if concealed damage is found
- Cleanup, permit responsibility, workmanship warranty, and material warranty
A lower total is not necessarily a better value when important components are missing. Put estimates side by side and compare the written scope before comparing price.
Roof replacement cost by roof size, height, and pitch
Larger roofs require more material and installation time. The roof area may also be greater than the home's floor area because of pitch, overhangs, attached garages, porches, and additions. Our property flow uses modeled roof data when it is available instead of assuming that house area and roof area are identical.
| Measured roof area | Roofing squares* | Planning range |
|---|---|---|
| 1,000 sq ft | 10 | $5,850–$10,500 |
| 1,200 sq ft | 12 | $7,000–$12,600 |
| 1,500 sq ft | 15 | $8,750–$15,750 |
| 1,700 sq ft | 17 | $9,900–$17,850 |
| 2,000 sq ft | 20 | $11,650–$21,000 |
| 2,200 sq ft | 22 | $12,850–$23,100 |
| 2,500 sq ft | 25 | $14,600–$26,250 |
| 3,000 sq ft | 30 | $17,500–$31,500 |
*Measured squares before the waste allowance. Examples use a medium slope, six modeled roof segments, and national baseline pricing.
How pitch and roof shape affect cost
Pitch changes the amount of roof surface and the way a crew can work on it. A steep roof may need additional fall protection, staging, and installation time. Shape matters because valleys, hips, dormers, and transitions create cuts and increase waste.
| Modeled complexity | Waste allowance | What it represents |
|---|---|---|
| 1–6 roof segments | 10% | Simpler roof shape |
| 7–11 roof segments | 12% | More hips, valleys, or transitions |
| 12+ roof segments | 15% | Highly cut-up roof plan |
Roof replacement cost by location
Roofing costs vary across the United States because labor, insurance, disposal, material delivery, permits, weather requirements, and contractor demand are not the same everywhere. Climate also changes the scope: cold regions may require added ice protection, hot regions may prioritize ventilation and reflective products, and storm-prone markets may use impact- or wind-rated systems.
Our calculator applies a broad regional factor when one is available. It does not claim to know a permit fee or contractor price for every ZIP code. State and city guides will add clearer local assumptions and questions to ask before hiring.
Roof replacement costs by state
Roof cost guides are available for every state and the District of Columbia.
Roof removal and disposal
A full replacement commonly starts with tearing off the existing roof so the crew can inspect the deck and install the new system on a suitable surface. Removal cost changes with material weight, number of layers, access, dump fees, and the amount of protection needed around landscaping and exterior finishes.
Our estimate model places tear-off and disposal inside the preparation portion of the project. A contractor proposal should state how many layers are included, whether the price covers hauling and disposal, and what happens if the crew discovers more material than expected.
Additional roof replacement materials and costs
The finished roof covering is only one part of the installed system. These items commonly change the final invoice or appear as allowances:
- Roof decking
- Soft, delaminated, or structurally damaged sheathing may not be visible until tear-off. Ask for a price per sheet or square foot before work begins.
- Underlayment and leak barriers
- These water-control layers protect the deck and vulnerable areas. Product and coverage requirements vary with material, slope, climate, and code.
- Flashing and penetrations
- Chimneys, walls, skylights, valleys, and plumbing vents need detailed water control. Confirm which flashing will be replaced instead of reused.
- Ventilation
- Balanced intake and exhaust can be part of manufacturer requirements and helps manage attic heat and moisture. A replacement is a good time to evaluate the existing design.
- Gutters and guards
- Gutters are not always part of a roof proposal. Our calculator can add planning allowances for new gutters and gutter guards after the roof is measured.
- Permits and code upgrades
- Responsibility for permits, inspections, enhanced fastening, edge metal, fire classification, or storm-related requirements should be explicit in the written scope.
Signs it may be time to replace your roof
Age alone does not decide whether a roof needs replacement, but it provides useful context. Material condition, repeated leaks, brittle or missing pieces, widespread granule loss, corrosion, soft decking, and failed flashing can point toward a larger project.
A repair may still be appropriate when damage is isolated and the surrounding system has meaningful service life left. Ask a qualified professional to identify the source of the problem and explain why the recommended scope is repair or replacement.
How our roof calculator works
The calculator begins with property information and available modeled roof measurements. It converts measured area into roofing squares, adds a waste allowance based on roof segmentation, applies the selected material's installed-cost assumptions, and adjusts the preparation portion for slope and complexity. A broad regional factor is applied when supported by the current model.
- Find the property. Confirm the address and available roof image.
- Review measurements. Check modeled roof area, pitch, and segmentation.
- Choose a material. Compare the same roof using different installed-cost assumptions.
- Review the range. Use the low, expected, and high values as a planning frame.
- Verify on site. Ask contractors to confirm measurements, conditions, and the complete written scope.
Estimates are for homeowner planning. They are not contractor bids, appraisals, insurance determinations, engineering advice, or guarantees of final cost. Read more about what affects the cost of a new roof.
Frequently asked questions
How accurate is an online roof replacement calculator?
A calculator is useful for setting a budget and comparing materials, but it cannot replace an on-site inspection. Final pricing can change after a contractor confirms access, old roofing layers, decking condition, flashing, ventilation, permits, and the exact product system.
What does one roofing square mean?
One roofing square equals 100 square feet of roof surface. A 2,000-square-foot roof contains 20 measured squares before the contractor adds waste for cuts, valleys, hips, and installation damage.
Does a roof estimate include removing the old roof?
Our planning model includes removal and disposal within the preparation portion of the estimate. A written contractor quote should still say how many existing layers are included and how unexpected layers or heavy materials will be priced.
Why can two roof replacement quotes be far apart?
The quotes may use different measured areas, materials, warranties, underlayment, flashing, ventilation, waste allowances, decking-repair prices, or permit assumptions. Compare the written scope line by line before comparing only the totals.
Should I repair or replace my roof?
A localized repair can make sense when the surrounding roof is still serviceable. Replacement is more likely to be practical when leaks recur, damage affects several slopes, materials are brittle or failing, or the roof is approaching the end of its expected life.