To estimate a roofing job, measure the roof area, calculate material quantities, and factor in labor costs, permits, and cleanup. A detailed estimate helps prevent underpricing, ensures profitability, and sets clear expectations for the homeowner.
Before estimating costs, you need the correct dimensions of the roof.
Example: If a roof is 50 feet x 40 feet with a gable style, the area is 2,000 sq. ft. or 20 squares. With a 10% waste factor, you’ll need 22 squares of shingles.
Roofing materials usually account for the largest portion of the estimate.
Example table for shingles:
Labor is often calculated per square or per hour, depending on your crew.
Example: If a 3-person crew works 4 days (8 hours/day), that’s 96 labor hours. At $40/hour, total labor = $3,840.
Overhead ensures you cover your business expenses, such as:
Add a percentage (commonly 10–15%) to your estimate.
Example: $2,940 (materials) + $3,840 (labor) = $6,780. Overhead at 12% = $813.
Profit margins vary depending on competition and project size, typically 10–20%.
Example: If your total costs are $7,593, adding a 15% margin = $1,139.
Final roofing estimate = $8,732.
Clients expect clear, itemized estimates. Make sure to:
Pro tip: Use estimate software like DepositFix’s free estimate generator to quickly create branded, professional estimates that can be converted into invoices once approved.
Example of a Roofing Estimate
DepositFix’s free estimate generator makes roofing estimates fast, accurate, and professional. In just minutes, you can:
With DepositFix, you save time, reduce errors, and improve your chances of closing more roofing jobs.
To estimate construction jobs, calculate materials, labor, equipment, overhead, and profit margins step by step for accurate, competitive bids.
To estimate electrical work, calculate materials, labor, permits, and contingencies. Create clear, professional estimates for free with DepositFix.
Write an invoice email by using a clear subject, polite greeting, invoice details, itemized services, payment instructions, PDF attachment, and follow-up.
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