Chimney & fireplace
Chimney Revenue Calculator
Projects chimney revenue, where the annual service base is what makes the year work.
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 AuditHow the calculation works
Jobs per month times average value gives monthly revenue, scaled annually with gross profit applied. The input that matters most in this trade is not the average value but the proportion of the work that recurs. Annual sweeping and inspection create a base that returns each year without being won again, and a business with a large recurring base has a predictable season while one dependent on new enquiries starts from nothing every autumn.
What moves the number
- Size of the recurring annual service base.
- Average value, which differs by an order of magnitude between a sweep and a rebuild.
- Conversion from inspection findings into repair work.
- Seasonal concentration, which makes monthly figures misleading.
Where this one goes wrong
Recurring service is the asset in this business. A household swept annually is revenue that returns without marketing, and a reminder system that actually brings them back is worth more than most advertising. Measuring the return rate matters: a company that sweeps a thousand chimneys and recalls half of them next year is in a very different position from one that recalls nine in ten. The other figure worth tracking is how many inspections produce repair work, since that conversion is where the higher-value jobs come from and it depends on how findings are explained rather than on finding more.
Before you quote
- Measure the annual return rate on the service base.
- Track conversion from inspection findings to repair work.
- Project by season rather than by even monthly average.
Questions
About this calculator
What makes a chimney business predictable?
A recurring annual service base. Households swept and inspected every year return without being won again, which turns an unpredictable season into a known one. A business dependent on fresh enquiries starts from zero each autumn and competes on price every time.
How do inspections turn into bigger jobs?
By explaining findings clearly rather than by finding more. A customer who understands why a cracked crown matters and what happens if it is left will usually act. The conversion rate from inspection to repair is a measure of communication rather than of how much is found.
Why not project revenue monthly?
Because the work is heavily seasonal, so an even monthly average describes no actual month. Projecting by season gives figures you can staff and plan cash against, and it makes the quiet period visible rather than hidden inside an annual division.
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 $420.
- Gross margin on this work (%). Enter your own figure; the page starts at 52%.
- 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 | $420 |
| Gross margin on this work | 52% |
| Share of total revenue | 40% |
What comes out
| Result | Value |
|---|---|
| Repair revenue per month main result | $11,760 |
| Per year | $141,120 |
| Gross profit per year | $73,382 |
| Implied total business revenue | $352,800 |
The repair line brings in $141,120 a year and earns $73,382 of gross profit on it.
How sensitive the answer is
Holding everything else steady and changing only average value, this is what happens to repair revenue per month. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Average value ($) | Repair revenue per month |
|---|---|
| $210 | $5,880 |
| $315 | $8,820 |
| $420 example above | $11,760 |
| $630 | $17,640 |
| $840 | $23,520 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Repair jobs per month
- A number, between 0 and 10000, starting at 28.
- Average value ($)
- A money amount, starting at $420.
- Gross margin on this work (%)
- A percentage, between 0 and 95, starting at 52%.
- 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. |
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.