Roofing
Roofing Business Revenue Calculator
Project revenue from workable crew days, average job value and close rate.
Result
Service lines rarely carry the same margin. Splitting them is the only way to see which part of the business is paying for the rest, which is frequently not the part that looks busiest.
Get a Free Business AuditWhat moves the number
- Workable days per crew per month, which is seasonal and regional.
- Average job value, which moves with material choice and roof complexity.
- Close rate on quotes.
Where this one goes wrong
Modelling on calendar days. Rain, wind and temperature all stop roofing work, and a revenue plan built on working days rather than workable days will be missed every season.
Questions
About this calculator
How many workable days should I assume?
Take it from your own records rather than from the calendar. The figure varies enormously by region and season and it is the single most important input to a roofing revenue model.
What raises average job value?
Material options presented properly, and addressing ventilation, flashing and deck condition as part of the job rather than leaving them out to look cheaper.
Should storm season be modelled?
As upside rather than as baseline. A plan that depends on storm work is a plan that fails in a calm year.
The formula
revenue = jobs x average value; gross profit = revenue x margin
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How to use this calculator
- Repair jobs per month. Enter your own figure; the page starts at 28.
- Average value ($). Enter your own figure; the page starts at $9,800.
- Gross margin on this work (%). Enter your own figure; the page starts at 34%.
- Share of total revenue (%). Used to show what the whole business turns over.
The result updates as you type, so you can try a figure, see what it does to repair revenue per month, and change it back. Nothing you enter is sent anywhere or saved.
A worked example
These are the figures the calculator opens with. Every number in the results column below is produced by the same calculation the page runs, so you can follow it through before putting your own figures in.
What goes in
| Input | Value |
|---|---|
| Repair jobs per month | 28 |
| Average value | $9,800 |
| Gross margin on this work | 34% |
| Share of total revenue | 40% |
What comes out
| Result | Value |
|---|---|
| Repair revenue per month main result | $274,400 |
| Per year | $3,292,800 |
| Gross profit per year | $1,119,552 |
| Implied total business revenue | $8,232,000 |
The repair line brings in $3,292,800 a year and earns $1,119,552 of gross profit on it.
How sensitive the answer is
Holding everything else steady and changing only average value, this is what happens to repair revenue per month. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Average value ($) | Repair revenue per month |
|---|---|
| $4,900 | $137,200 |
| $7,350 | $205,800 |
| $9,800 example above | $274,400 |
| $14,700 | $411,600 |
| $19,600 | $548,800 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Repair jobs per month
- A number, between 0 and 10000, starting at 28.
- Average value ($)
- A money amount, starting at $9,800.
- Gross margin on this work (%)
- A percentage, between 0 and 95, starting at 34%.
- Share of total revenue (%)
- Used to show what the whole business turns over.
What the results tell you
| Result | What it is |
|---|---|
| Repair revenue per month | The headline result. A money figure. |
| Per year | A money figure. |
| Gross profit per year | A money figure. |
| Implied total business revenue | A money figure. |
What this cannot see
Material quantities assume a clean rectangular plane and the waste factor you enter. Valleys, hips, dormers, penetrations and a steep pitch all raise real waste, and a tear-off frequently uncovers decking that was not in the quote.
Estimating is the easy part
The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.