Roofing
Roofing Installation Revenue Calculator
Project replacement revenue from quotes, close rate, average value and workable crew days.
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
- Close rate on quotes.
- Average job value, driven by material and roof size.
- Workable crew days, which is the binding constraint.
Where this one goes wrong
Setting a revenue target that exceeds workable crew days. In roofing the ceiling is weather-adjusted capacity, and a target above it becomes a backlog and then cancellations.
Questions
About this calculator
What is the real capacity constraint?
Workable crew days, which is well below calendar days. Using nominal capacity produces plans that fail every season for the same reason.
How far ahead should work be booked?
Far enough to keep crews busy and not so far that customers cancel. A backlog that stretches beyond a homeowner's patience converts into lost work.
Does material lead time matter?
It can dominate. A crew waiting on material is a lost workable day, which in roofing is the scarcest resource.
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.