To bid a roofing job, you need to measure the roof size, pick materials, add labor costs, and include profit. A good bid tells the customer exactly what you will do and how much it will cost. Most roofing jobs need a detailed walk-through and a written estimate. According to RubyHome, the average roof replacement cost is $9,526, with a range from $5,868 to $13,217. Knowing how to bid correctly helps you win jobs and make money.
How Do You Measure the Roof?
Start by measuring the roof size in squares. One square equals 100 square feet. According to the National Association of Home Builders, the average U.S. roof size is 2,647 square feet or 26.47 squares.
Use a ladder and tape measure to find the length and width of each roof section. Multiply length times width to get square feet. Then divide by 100 to get squares. Add 10% extra for waste and cuts.
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What Materials Should You Use in Your Bid?
Material costs vary a lot. According to RubyHome, roof installation costs range from $4 to $40 per square foot. For a 1,700 square foot roof, that is $6,800 to $68,000.
Asphalt shingles are cheapest. They cost $4.25 to $4.95 per square foot. Metal roofing costs $10 to $17.05 per square foot. Slate tiles cost $12 to $22 per square foot. Pick materials based on what the customer wants and their budget.
How Do You Calculate Labor?
Labor is the biggest cost in your bid. According to the U.S. Bureau of Labor Statistics, the median roofer wage is $24.05 per hour. Most residential roofs need 8 to 12 hours per square of work.
Multiply the number of squares by hours needed. Then multiply by your hourly rate. Add 15% to 20% for overhead costs like insurance and trucks. According to IBISWorld, the U.S. roofing contractor industry revenue is $81.3 billion, showing how much work is out there.
What Should Your Bid Include?
Here is what goes in a good bid:
- Roof size in squares
- Material type and cost
- Labor hours and rate
- Removal of old roof (if needed)
- Permits and fees
- Profit margin (15% to 25%)
- Warranty details
- Timeline
According to the Insurance Information Institute, 33% of homeowners need roof replacement because of leaking, and another 33% need it because of storm damage. This means you may need to mention cleanup and extra work in your bid. Write everything clearly so the customer knows exactly what they are paying for. A clear bid builds trust and helps you close the sale.
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Contact a qualified roofing solutions for expert guidance on roof repair, replacement, or installation.