Quick scenario presets
0 if going over existing, 1 for most jobs, 2+ for layered roofs. ~$100/square per layer.
Total Roof Replacement Cost
$8,804.25
17.6 squares (1,761 sq ft), Architectural Asphalt Shingles
Roof Summary
Cost Breakdown
12,800+ estimates calculated this month
Last updated: 2026-06-03
What a Roof Replacement Actually Costs
A roof is one of those jobs where homeowners see a pile of shingles and a couple of guys and assume it should be cheap. It is not. Most of the cost is labor, tear-off, and the simple fact that a steep roof has a lot more surface than the house footprint underneath it. A standard architectural shingle replacement runs $5 to $7 per square foot installed with tear-off, and a 2,000 sq ft roof lands around $10,000 to $14,000.
The calculator above splits that number into material, labor, and tear-off so you can see exactly where the money goes. Enter your footprint and pitch, pick a material, set the tear-off layers, and you get a per-square breakdown you can hand a client or use to sanity-check a bid. Try EstimationPro free to turn that estimate into a branded proposal and let it follow up with the homeowner automatically so you win more of the bids you already send.
Roof Replacement Cost by Material
| Material | Installed Cost/Sq Ft | Cost per Square | Lifespan |
|---|---|---|---|
| 3-Tab Asphalt | $3.00-$5.00 | $300-$500 | 15-20 years |
| Architectural Asphalt | $4.00-$7.00 | $400-$700 | 25-30 years |
| Standing-Seam Metal | $8.00-$14.00 | $800-$1,400 | 40-70 years |
| Concrete / Clay Tile | $10.00-$18.00 | $1,000-$1,800 | 50+ years |
Installed figures include material plus labor before tear-off. Tear-off and disposal add about $100 per square per layer. Source: EstimationPro pricing reference, 2026 material and labor data.
Worked Examples by Tier
Budget: small ranch, 3-tab asphalt, simple gable, 1 layer tear-off
- Roof area: 30 x 24 footprint x 1.054 (4:12 pitch) = 759 sq ft, about 7.6 squares
- Material: 7.6 squares x $100 = $759
- Labor: 7.6 squares x $200 = $1,518
- Tear-off: 7.6 squares x $100 x 1 layer = $759
- Total: $3,036 (about $4.00/sq ft)
Standard: typical 2-story, architectural shingles, simple, 1 layer tear-off
- Roof area: 45 x 35 footprint x 1.118 (6:12 pitch) = 1,761 sq ft, about 17.6 squares
- Material: 17.6 squares x $150 = $2,641
- Labor: 17.6 squares x $250 = $4,402
- Tear-off: 17.6 squares x $100 x 1 layer = $1,761
- Total: $8,804 (about $5.00/sq ft)
Premium: large home, standing-seam metal, complex roof, 2 layers tear-off
- Roof area: 60 x 45 footprint x 1.25 (9:12 pitch) = 3,375 sq ft, about 33.8 squares
- Material: 33.8 squares x $400 = $13,500
- Labor: 33.8 squares x $400 x 1.30 complex = $17,550
- Tear-off: 33.8 squares x $100 x 2 layers = $6,750
- Total: $37,800 (about $11.20/sq ft)
What Drives the Price Up
- Material choice. This is the single biggest lever. Going from 3-tab to metal can triple the per-square cost. Match the material to how long the owner plans to stay in the house.
- Pitch. Steeper means more surface and slower, safer work. A 12:12 roof carries over 40% more material than its footprint and needs fall protection that a walkable 4:12 does not.
- Tear-off layers. Every old layer is about $100 per square to remove and haul. Two layers on a 20-square roof is $4,000 before new material touches the deck.
- Roof complexity. Valleys, dormers, hips, skylights, and chimneys all add cut time and flashing. A cut-up roof can run 15% to 30% more labor than a clean gable of the same size.
- Hidden deck damage. Rotten or delaminated plywood is not in the base bid. Replacing decking runs $70 to $100 a sheet installed, and you rarely know how much until the old roof is off.
Where Roofers Lose Money on Bids
The fastest way to eat your margin is quoting a flat per-square price and ignoring tear-off and complexity. I measure the real roof area off the pitch, price tear-off by the layer as its own line, and add a complexity factor for anything that is not a simple gable. Then I write a clear allowance for decking so a soft deck on demo day is a conversation, not a fight.
Need to size the job first? Our roof square footage calculator converts your measurements to squares, the roof pitch calculator nails the slope, and the shingle calculator dials in bundle counts. Going metal? The metal roof calculator handles panel runs. For a full pricing breakdown by material, read the roof replacement cost guide.
When you are ready to send the real number, EstimationPro builds the line-item estimate, turns it into a professional proposal, follows up with the homeowner automatically so the bid does not go cold, and invoices the job when it is done. Try EstimationPro free.
How to Use This Calculator
Enter the roof size
Use your building footprint (length x width) plus the roof pitch, or punch in the roof area directly in roofing squares if you already measured on the slope. One square equals 100 square feet of roof surface.
Pick the pitch
Pitch sets how much actual roof sits over the footprint. A 6:12 roof has about 12% more surface than the ground it covers; a 12:12 has over 40% more. Steeper roofs mean more material and more labor.
Choose your roofing material
3-tab asphalt is the budget option, architectural shingles are the standard, and metal or tile run the high end. The calculator carries the right material and labor rate per square for each.
Set complexity and tear-off layers
A cut-up roof with valleys and dormers costs more labor than a simple gable. Add how many old layers come off (most jobs are one). The total updates instantly with a full material, labor, and tear-off breakdown.
Roof Replacement Cost Formula
Roof Area = Footprint Length x Width x Pitch Multiplier
Squares = Roof Area / 100
Material Cost = Squares x Material Rate per Square
Labor Cost = Squares x Labor Rate per Square x Complexity Factor
Tear-Off Cost = Squares x $100 x Layers Removed
Total Cost = Material + Labor + Tear-OffWhere:
- Pitch Multiplier
- = 1.054 at 4:12, 1.118 at 6:12, 1.25 at 9:12, 1.414 at 12:12
- Material Rate
- = $100/sq (3-tab), $150 (architectural), $400 (metal), $600 (tile)
- Labor Rate
- = $200-$500/square; roofing labor runs $150-$500/sq per the pricing reference
- Complexity Factor
- = 1.0 simple gable, 1.15 moderate, 1.30 complex/cut-up
- Tear-Off
- = ~$100 per square per existing layer removed
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Frequently Asked Questions
How much does it cost to replace a roof?
A typical 2,000 sq ft architectural shingle roof (about 20 squares) runs $10,000 to $14,000 replaced, including tear-off, or roughly $5 to $7 per square foot. A small 3-tab roof can land near $3,000 to $5,000, while a large metal or tile roof on a complex home pushes $30,000 to $45,000. The biggest swings are material, pitch, and how cut-up the roof is.
How much does a roof replacement cost per square?
Roofers price by the square (100 sq ft). Installed, asphalt runs $300 to $500 per square, architectural shingles $400 to $700, and metal $800 to $1,400 per square. Tear-off adds about $100 per square per layer. Per the EstimationPro pricing reference, roofing labor alone is $150 to $500 per square depending on pitch and access.
How do contractors estimate a roof replacement?
I measure the footprint, apply the pitch multiplier to get the real roof area, then convert to squares. Material times squares, plus labor times squares times a complexity factor, plus tear-off per layer. I always price tear-off as its own line because a hidden second layer or rotten decking is where roofs blow the budget. Build the full bid fast with our roofing calculator, then size the deck with the roof square footage calculator.
How many squares is my roof?
Take your footprint area and multiply by the pitch factor, then divide by 100. A 40x30 footprint at 6:12 pitch is 1,200 sq ft x 1.118 = about 1,342 sq ft, or 13.4 squares. Most single-family homes land between 15 and 25 squares. Use our roof pitch calculator to nail the slope first if you are not sure.
Does tearing off the old roof add a lot to the cost?
Yes. Tear-off and disposal run about $100 per square per layer, so a 20-square roof with one layer adds roughly $2,000 before you lay a single new shingle. Two layers doubles it. Going over the existing roof saves that money but it is a band-aid. I have pulled off "one" layer and found three, plus soft decking underneath that nobody budgeted for.
Why is a steep or complex roof more expensive?
Two reasons. Pitch increases the actual surface area, so a 12:12 roof has over 40% more material than its footprint. And steep, cut-up roofs with valleys, dormers, and hips slow the crew down and need fall protection, which is why I add a 15% to 30% labor factor for complex roofs. A simple gable goes fast; a Victorian with six dormers does not.
What does this estimate leave out?
This is a budget number for material, labor, and tear-off. It does not include decking replacement (rotten plywood runs $70 to $100 per sheet installed), new flashing, drip edge, or vents, permits, or a steep-slope surcharge beyond the complexity factor. For a full breakdown by material, see our roof replacement cost guide. Always walk the attic and the deck before you commit to a number.
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