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Field service KPIs: the ten numbers worth tracking, with formulas

The field service KPIs that actually change decisions, how to calculate each one, and how to set targets from your own baseline.

By Primemgr TeamHow we research and check this

A small trade business office desk with a laptop showing abstract charts, a mug of coffee, a hard hat and a set of van keys, morning light through a window

The field service KPIs worth tracking are the ones that change a decision: first-time fix rate, callback rate, utilisation, jobs per technician per day, average job value, quote win rate, time to invoice, debtor days, revenue per technician and on-time arrival. Measure each the same way every month, set targets from your own baseline, and ignore any number nobody would act on.

Published benchmarks for these vary widely by trade, job length and how each company defines them, so they make poor targets. Your own trend is the honest comparison: is this month better than the average of the last three?

The ten KPIs and how to calculate them

KPI

Formula

What it tells you

First-time fix rate

Jobs finished on the first visit ÷ all jobs

Diagnosis, parts on the van, technician skill

Callback rate

Jobs needing an unplanned return ÷ jobs completed

Quality of the work

Utilisation

Billable hours ÷ paid hours

How much of the day earns money

Jobs per technician per day

Jobs completed ÷ technician days worked

Scheduling and travel efficiency

Average job value

Revenue ÷ jobs invoiced

Pricing and upselling

Quote win rate

Quotes accepted ÷ quotes sent

Pricing, speed and follow-up

Time to invoice

Days from job complete to invoice sent

Admin speed; cash flow

Debtor days

Money owed ÷ revenue × days in period

How long customers take to pay

Revenue per technician

Revenue ÷ number of technicians

Capacity and pricing together

On-time arrival

Visits started within the promised window ÷ visits

Customer experience

Fix the definitions before you track anything

A KPI is only useful if it is calculated the same way every time. Decide once, write it down and keep it:

  • Does a planned second visit (parts ordered, a two-day job) count against first-time fix? Most businesses exclude it; whatever you choose, be consistent.
  • How long after a job does a return count as a callback: 7 days, 30 days, 90?
  • Are travel hours billable? Only if the customer is charged for them, for example through a call-out fee.
  • Is revenue counted when invoiced or when paid?

The four to start with

Ten numbers is too many for a small team to act on at once. Start with the four that most often hide money:

  1. Utilisation. If technicians are billable for five hours out of eight, every percentage point you win back is revenue with no extra wages. The utilisation calculator shows what a change is worth.
  2. **First-time fix rate.** Every return visit costs a full trip and pushes another job back.
  3. Quote win rate. A falling rate points at price, speed or follow-up; see how long a quote should stay valid and how to follow it up.
  4. Debtor days. Profit on paper is not cash in the bank. Clear payment terms and prompt invoicing move it fastest.

Setting targets without inventing benchmarks

Take the average of your last three months as the baseline. Set a target that is a realistic step from it, for example two points of utilisation or five fewer debtor days, and review it monthly. Look at the trend per technician as well as for the team: one person with a high callback rate is a coaching conversation, a whole team with one is a process problem.

How often to look at each one

  • Weekly: jobs per technician per day, first-time fix and on-time arrival. They move fast and a problem shows up in days.
  • Monthly: utilisation, callback rate, quote win rate, average job value, time to invoice and debtor days.
  • Quarterly: revenue per technician and your prices, alongside your costs.

Share the weekly numbers with the team. Technicians who can see the first-time fix rate start asking for the parts that would have saved the second trip.

Where the numbers come from

Most of these fall out of records you already keep if each job has a start, a finish, a status history, time entries and an invoice. The difficulty is usually that they live in different places. When jobs, quotes, time and invoices sit in one system, the KPIs are reports rather than a monthly spreadsheet.

Tracking them in Primemgr

Primemgr includes reports for revenue, daily sales, job profitability, utilisation, customer retention and lead conversion, calculated in your business’s own time zone. Time is recorded against jobs with weekly timesheets, and every job keeps its status history, so first-time fix and callbacks can be counted from real records. You can try it free for 14 days on your own jobs: see pricing.

Official guidance

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