HVAC
HVAC Field Service Efficiency Calculator
Measure how much of the working day turns into completed, invoiced work rather than movement and admin.
Result
Every figure here is an estimate built from numbers you supplied, and the last step is the softest: freed hours only become jobs if there is demand waiting and a dispatcher able to fill them. On a slow week they become an earlier finish instead, which is worth something but is not revenue. Treat the job and revenue figures as an upper bound rather than a forecast.
Open the HVAC field service demoWhat moves the number
- First time fix rate, which is the largest single lever.
- Time spent on paperwork, which is often reconstructed at the end of the day.
- Parts availability, since a missing part converts a completed job into two visits.
Where this one goes wrong
Measuring jobs per day without measuring first time fix. Two quick visits to the same fault look like productivity and are the opposite.
Questions
About this calculator
What is first time fix rate?
The share of calls resolved on the first visit. It is the most useful single field metric because it captures diagnosis quality, parts stocking and scheduling accuracy at once.
How do I improve it?
Better information at booking, common parts on the van, and equipment history available to the technician before arrival. Most repeat visits are information failures rather than skill failures.
Does software fix this?
It helps with the information part: history, parts and scheduling. It does not diagnose, and a system that adds data entry without reducing repeat visits has made the day worse.
Put this calculator on your site
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How to use this calculator
- Technicians in the field. Enter your own figure; the page starts at 6.
- Jobs per technician per day. Enter your own figure; the page starts at 4.
- Admin minutes per job (min). Writing the ticket, phoning the office, re-reading it back, chasing the part number.
- Working days per month. Enter your own figure; the page starts at 21.
- Average job value ($). Enter your own figure; the page starts at $340.
- Admin time you think you could remove (%). Be conservative. Some of it is real work that has to happen somewhere.
The result updates as you type, so you can try a figure, see what it does to admin hours 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 |
|---|---|
| Technicians in the field | 6 |
| Jobs per technician per day | 4 |
| Admin minutes per job | 18 min |
| Working days per month | 21 |
| Average job value | $340 |
| Admin time you think you could remove | 40% |
What comes out
| Result | Value |
|---|---|
| Admin hours per month main result | 151.2 |
| Hours freed at that reduction | 60.5 |
| Jobs that could fit in them | 30.2 |
| Value of those jobs | $10,282 |
6 technicians running 4 jobs a day spend about 151.2 hours a month on paperwork, 25.2 hours each. Removing 40% of it frees 60.5 hours, room for roughly 30.2 more jobs worth $10,282.
How sensitive the answer is
Holding everything else steady and changing only average job value, this is what happens to admin hours per month. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Average job value ($) | Admin hours per month |
|---|---|
| $170 | 151.2 |
| $255 | 151.2 |
| $340 example above | 151.2 |
| $510 | 151.2 |
| $680 | 151.2 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Technicians in the field
- A number, between 0 and 500, starting at 6.
- Jobs per technician per day
- A number, between 0 and 30, starting at 4.
- Admin minutes per job (min)
- Writing the ticket, phoning the office, re-reading it back, chasing the part number.
- Working days per month
- A number, between 0 and 31, starting at 21.
- Average job value ($)
- A money amount, starting at $340.
- Admin time you think you could remove (%)
- Be conservative. Some of it is real work that has to happen somewhere.
What the results tell you
| Result | What it is |
|---|---|
| Admin hours per month | The headline result. A decimal figure. |
| Hours freed at that reduction | A decimal figure. |
| Jobs that could fit in them | A decimal figure. |
| Value of those jobs | 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.
Keep going
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Open calculatorSee where the duplication goes
The BDEVY field service demo captures the diagnosis, the parts and the hours once, on site, and the invoice, the estimate and the customer report all run from that.