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How much will a new roof cost?

Estimate roof replacement costs based on size, material, and complexity. Essential for planning solar installation or home improvement projects.

What This Calculator Is

A roof replacement cost estimator calculates the approximate cost of replacing your roof based on its size, material, pitch, and your location. Roofing costs vary significantly by material (asphalt, metal, tile) and regional labor rates. This helps you budget for one of the largest home maintenance expenses.

Who This Calculator Is For

Homeowners planning roof replacements, those comparing contractor bids for reasonableness, home buyers evaluating properties with aging roofs, and anyone budgeting for future home maintenance. Real estate investors use it to factor roofing costs into property analysis.

When to Use This Calculator

Use this calculator when your roof is approaching end of life, when evaluating contractor bids, when purchasing a home with an older roof, or when considering different roofing materials. It provides estimates—always get multiple professional quotes.

Inputs

2000

Results

Estimated Cost

$0.00

Low Estimate$9,000.00
High Estimate$13,000.00
Cost per Sq Ft$0.00

Savings estimates depend on your location, utility rates, system performance, and tax situation.

Insights

Your roof estimate

Expect to pay between $9,000.00 and $13,000.00, with a mid-range estimate of $11,000.00.

Before solar

If your roof is 15+ years old, replace it before installing solar panels. It's cheaper than removing panels later.

How Roof Replacement Cost Estimator Is Calculated

The calculator uses base costs per square foot for each material type, then adjusts for complexity factors, height/stories, and tear-off requirements. It provides a range to account for regional and contractor variations.

squares = roofSquareFootage / 100
cost (low/mid/high) = squares * materialCostPerSquare(low/mid/high) * complexityMultiplier * storyMultiplier + tearOffCost
tearOffCost = squares*100 if tearOff='yes' else 0
costPerSquare = midEstimate / squares
Where:
materialCostPerSquare: lookup table per material (asphalt/metal/tile/slate/wood) with low/mid/high $ per 100 sq ft
complexityMultiplier: simple=0.9, medium=1.0, complex=1.25
storyMultiplier: 1 story=1.0, 2=1.15, 3=1.30
Assumptions:
Unrecognized material defaults to asphalt pricing; unrecognized complexity/stories default to multiplier 1
Tear-off adds a flat $100 per square regardless of material
Results rounded to nearest whole dollar

Key Takeaways

  • •Replace your roof before installing solar if it's more than 15 years old
  • •Asphalt shingles are most affordable but metal lasts 50+ years
  • •Get at least 3 quotes from licensed roofing contractors
  • •Consider material warranties - they vary significantly
  • •Some materials work better with solar panel installation

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