the job sheet

The Dutch technical sector needs 121,000 new skilled professionals over the next five years, while 118,000 are flowing out and the trade is already some 30,000 technicians short today. In that same sector, job sheets still ride along on paper in the van every day, to be retyped that evening or days later. Those two facts belong together: in a market where you cannot buy an extra engineer, every hour of administration is functionally a lost engineer hour. The sector now says so itself. What the sector does not do is measure it, and that gap teaches you more than any sales pitch about digital job sheets.

This essay belongs with the portal, which covers the customer side of the same problem: logistics you cannot see. This one is about the inside, the route from done to invoiced.

what does the paper job sheet cost an installation business?

Nobody knows exactly, and that is the most honest opening I can give you. Dutch healthcare has been measuring for nearly a decade how much working time goes to administration: 31 percent according to Statistics Netherlands (CBS), 34 percent according to the ongoing Berenschot survey, while care professionals themselves consider 23 percent acceptable (CBS, 2025; Berenschot, 2025). The installation sector has the vocabulary, industry association Techniek Nederland itself speaks of easing administrative burden, but publishes no comparable measurement of what the job sheet costs an engineer.

That gap gets filled by software vendors, and you should be careful there. Figures circulate about hours per day of non-billable paperwork and whole FTEs gained per ten engineers, but not one of them can be traced back to an independent, verifiable study. The most cited research on field service efficiency, moreover, dates from 2013 and has been passed around for twelve years as if it were fresh (Aberdeen Group, 2013). Sometimes a marketing number even arrives with an official-sounding source that turns out not to exist when you check. My advice is therefore the reverse of what the brochures say: believe no sector average at all, and tally your own hours for one week. What you have then is the only number that matters for your business.

why is this more urgent than any ai promise?

Because the labor market math makes it urgent, not the technology. At the end of last quarter, more than 400,000 vacancies stood open in the Netherlands, and the Dutch employment agency UWV has rated technical occupations tight to very tight for years (UWV, 2025). The sector puts its own staffing need at more than 30,000 people, two thirds of them engineers working independently (Techniek Nederland, 2024). And seventy percent of the required inflow has to come from career switchers, people who are not there yet.

In that context, the chairman of Techniek Nederland is strikingly sober about what needs to happen: if systems can take over repetitive and administrative work, technicians keep more time for the craft (Techniek Nederland, 2025). That is not AI gospel from a vendor, it is the sector’s own labor market policy: besides recruitment, productivity is the only dial there is. And the dullest productivity gain is precisely the job sheet that no longer needs retyping. No language model required; structure required.

what does the job sheet have to do with your cash flow?

Everything, and you need no vendor figure to see it, only mechanics. An invoice can only go out once it is settled what was done and delivered: the job sheet. Every day between finished at the customer and processed at the office pushes the invoicing moment back. Those days come on top of a payment term you can do little about: despite the statutory maximum of 30 days, the Dutch central government reported that large companies paid small and midsize suppliers after 40 to 43 days on average in practice (Rijksoverheid, 2023), and the European b2b average sits above 60 days (European Commission, 2025).

Be precise here, because dramatizing helps nobody: within the EU, the Netherlands is actually among the countries where the fewest businesses get into trouble through late payment. The pinch for installation businesses sits somewhere more specific: whoever works at the bottom of a chain of main contractor and subcontractor waits for the party above them regardless. The only part of that chain you fully control is the time between done and invoiced. A job sheet completed on site, signature included, can be invoiced the same day. That is the entire business case, and it stands apart from any ROI promise.

so is going digital always a win?

No, and whoever claims it is has never seen the form designed badly. If the app enforces more required fields than an engineer ever filled in voluntarily on paper, the burden merely moves: from the kitchen table in the evening to the customer’s doorstep, where it stretches the visit. The sector warns about this itself; in Techniek Nederland’s own digitalization program it sounds like “we do not make a form for the sake of making forms” (Techniek Nederland, 2024). That is the right bar: fill in only what is needed.

There is a second force at work too, one that rarely gets named honestly. The Wet kwaliteitsborging voor het bouwen, the Dutch building quality assurance act, has demanded considerably more file-keeping and evidence per project since 2024. Part of the sector’s digitalization wave is therefore not liberation from old clutter but keeping pace with a new documentation duty. The gain from going digital gets partly eaten by fields that did not exist before. That is no reason to skip it; it is a reason to design soberly and to separate the statutory fields from the wish list.

One bright spot in the same numbers: if seventy percent of the inflow has to come from outside the sector, tomorrow’s crews will largely consist of people without decades of paper habit. For them the phone is the normal tool. So the transition gets easier, not harder, as the shortage bites deeper. That is a meager consolation with a practical side.

where do you start?

Four steps, in order of effort.

1. Measure your own baseline: tally for one week how much time engineers and back office lose to job sheets, retyping and follow-up calls, and how many days sit on average between done and invoiced.
2. Complete on site: tick off tasks, photos instead of prose, the customer’s signature on it, done means done.
3. Link the job sheet to the invoice, so that completed means invoiceable. The days you win here are the only days in the payment chain that belong to you.
4. Be strict about fields: whatever the law or the invoice does not ask for goes out. Any digitalization that makes the form thicker than the paper was is a step backwards with an app icon.

For the record: I build software myself in which the engineer completes the job sheet on the phone. The math above is the reason that feature exists, and it keeps adding up whichever system you choose.