Finance category
Mortgage, loan, investing, tax, and money calculators.
Full Roof Replacement Cost Calculator
Full reroof has tear-off + new. This calculator sizes.
Total reroof cost
$433,100
Cost per SF
$20
Deck repair cost
$39,600
How the math works
Total = tear-off + new roof + deck repair + disposal. Per SF includes all components.
22,000 SF reroof at $3.5 tear-off + $14 new + 15% deck × $12 = $462k + disposal $8,500 = ~$472k. $21.5/SF all-in. Bid with 3+ roofing contractors; specs in writing to ensure apples-to-apples.
How to Use
- Enter roof SF.
- Enter tear-off cost/SF.
- Enter new roof cost/SF.
- Enter deck repair %.
- Enter disposal fee.
- Read total reroof cost.
Frequently Asked Questions
Material costs?
Asphalt shingles: $7-12/SF reroof. TPO/EPDM: $10-16/SF. Metal standing seam: $18-28/SF. Slate/clay tile: $25-45/SF. Modified bitumen: $12-18/SF. Cost drops on large projects (>50k SF). Labor 40-60% of cost.
Hidden costs?
Deck repair (rotted sheathing): $3-5/SF on 10-20% of area. Flashing replacement. Parapet caps. Drain repair. Code upgrades (insulation R-value to current code). Often 15-25% over base material + labor. Factor into budget.
When to replace?
Asphalt: year 20-25. TPO/EPDM: year 20-30. Metal: year 40-60. Slate: 75+. Inspect annually. Leak frequency and remaining useful life together. Don't replace early (waste useful life); don't delay (damages interior, increases cost).
Related Calculators
More Finance Calculators
Browse all finance →AI Cost Calculator
Compare token costs across OpenAI, Anthropic, and Google AI models. Calculate monthly API spending for GPT-4o, Claude, Gemini, and more.
Tip Calculator
Calculate the perfect tip and split the bill between friends. Choose preset percentages or enter a custom tip amount.
Bill Splitter Calculator
Split an uneven restaurant bill by item, divide tax and tip proportionally, and see exactly who owes whom.
Discount Calculator
Calculate sale price, discount amount, stacked discounts, sales tax, and total savings for any markdown.
Gas Mileage Calculator
Calculate MPG or km/L, estimate trip fuel cost, and compare annual fuel expenses between two vehicles.
Sales Tax Calculator
Add sales tax to a price, reverse-calculate the pre-tax amount from a total, and estimate tax for multiple items on one receipt.
Keep exploring