The cost of installing a new roof: Factors and estimates

Aerial view of a house with a partially completed roof installation, surrounded by construction materials and tools.

Understanding the Basics

Installing a new roof is one of the most significant investments you can make in your home. According to HomeAdvisor, most homeowners spend between $5,700 and $12,000 on a new roof installation.

Key Factors Influencing Roofing Costs

1. Roof Size and Pitch

  • Size: The larger the roof, the more materials and labor required. Roofing contractors measure in "squares," where one square equals 100 square feet.
  • Pitch: Steeper roofs require additional labor and safety equipment, increasing costs.

2. Material Costs

Different roofing materials come with varying price points:

MaterialCost per Square FootTotal Material CostEstimated Total Cost (Including Labor)
Asphalt Shingles$3.50 - $5.50$2,200 - $3,300$5,500 - $9,900
Metal Roofing$6.00 - $12.00$6,600 - $17,600$13,200 - $35,200
Slate$15.00 - $25.00$22,000 - $44,000$44,000 - $88,000
Clay Tiles$10.00 - $18.00$13,200 - $22,000$26,400 - $44,000
Wood Shakes$6.50 - $14.00--

For more detailed information on roofing materials, visit This Old House's guide on roofing materials.

3. Labor Costs

Labor typically accounts for 40-60% of the total roofing cost. Professional roofers usually charge between $1.50 and $3.00 per square foot, depending on:

  1. Roof complexity
  2. Pitch/slope
  3. Accessibility
  4. Local market rates

4. Geographic Location

"Labor rates and material costs can vary by as much as 50% between different regions of the United States." - National Roofing Contractors Association

5. Seasonal Timing

  • Peak Season (late summer/fall): Higher prices, longer wait times
  • Off-Season (winter/early spring): Potential discounts, faster scheduling

Additional Cost Considerations

Removal of Old Roofing

Most contractors charge $1.00 to $5.00 per square foot to remove existing roofing materials, varying based on:

  • Number of layers to remove
  • Type of material
  • Disposal fees in your area

Hidden Costs

  • Deck repair or replacement
  • Ventilation improvements
  • Flashing replacement
  • Gutter system updates
  • Permits and inspections ($250-$500)
  • Skylights and chimneys requiring special flashing

Long-term Value Considerations

When evaluating costs, consider these factors:

Material TypeLifespanMaintenance CostsEnergy Efficiency
Asphalt20-30 yearsLowModerate
Metal40-70 yearsVery LowHigh
Slate75-100+ yearsLowHigh
Clay Tile50-100 yearsLowHigh

Insurance and Warranty Coverage

Quality roof installations typically include:

  • Manufacturer's Warranty: Covers materials (20-50 years)
  • Workmanship Warranty: Covers installation (2-10 years)

For more tips on hiring a roofing contractor, check out Angie's List's guide or visit the National Roofing Contractors Association website.