HVAC
HVAC Business Revenue Calculator
Model total business revenue across service, maintenance, repair and installation, with capacity as the constraint.
Result
Revenue is not profit. This is the top line before the cost of doing the work and before overhead, and it excludes sales tax, which is collected for the state rather than earned.
Get a Free Business AuditWhat moves the number
- Technician hours available, which is the real ceiling.
- Mix between revenue types, since each has a different ticket and margin.
- Seasonality, which moves both volume and mix.
Where this one goes wrong
Modelling each revenue line independently. They compete for the same technicians, so a plan that grows installation and service simultaneously may need more capacity than the plan assumes.
Questions
About this calculator
What is the ceiling on revenue?
Billable technician hours, until you add technicians. Every growth plan eventually runs into that, so it is worth modelling explicitly rather than discovering.
Should I chase installation or service?
Depends on margin and capacity. Installation grows revenue fastest and typically carries thinner margins; service carries better margins and scales more slowly.
How do maintenance agreements affect the model?
They convert unpredictable demand into scheduled work, which raises utilisation and smooths the year. That is worth more than the fee alone suggests.
The formula
monthly revenue = jobs x average value, compounded by the growth rate across twelve months
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How to use this calculator
- Jobs per month. Enter your own figure; the page starts at 78.
- Average job value ($). Enter your own figure; the page starts at $620.
- Monthly growth (%). Enter your own figure; the page starts at 0%.
- Share actually collected (%). Write-offs, disputes and the invoices nobody ever pays.
The result updates as you type, so you can try a figure, see what it does to revenue this 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 |
|---|---|
| Jobs per month | 78 |
| Average job value | $620 |
| Monthly growth | 0% |
| Share actually collected | 97% |
What comes out
| Result | Value |
|---|---|
| Revenue this month main result | $48,360 |
| Revenue over twelve months | $580,320 |
| Collected over twelve months | $562,910 |
| Never collected | $17,410 |
$48,360 a month and $580,320 over a year, of which $562,910 actually reaches the bank.
How sensitive the answer is
Holding everything else steady and changing only average job value, this is what happens to revenue this month. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Average job value ($) | Revenue this month |
|---|---|
| $310 | $24,180 |
| $465 | $36,270 |
| $620 example above | $48,360 |
| $930 | $72,540 |
| $1,240 | $96,720 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Jobs per month
- A number, between 0 and 5000, starting at 78.
- Average job value ($)
- A money amount, starting at $620.
- Monthly growth (%)
- A percentage, between 0 and 50, starting at 0%.
- Share actually collected (%)
- Write-offs, disputes and the invoices nobody ever pays.
What the results tell you
| Result | What it is |
|---|---|
| Revenue this month | The headline result. A money figure. |
| Revenue over twelve months | A money figure. |
| Collected over twelve months | A money figure. |
| Never collected | A money figure. |
Before you rely on this number
Sizing, capacity and load figures here are planning estimates. A real installation depends on the manufacturer's data for the specific equipment, the duct system it is going into, and a proper load calculation for the building. Use this to sanity-check a number or price a job, not to select equipment.
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.