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Running the job

Job Card App for South African Trades

Updated September 2026 · 5 min read

The quote says what you planned to do. The job card says what actually happened. For most tradesmen the gap between the two is where the money leaks: the extra 6 metres of cable, the second visit nobody wrote down, the "your guy never finished" phone call a month later. Here is what a job card needs, a layout you can copy, and how to run job cards from your phone.

What a job card should record

  1. The site address. Often not the billing address: a landlord pays from an office while the work happens at a flat.
  2. Time on and time off site, so the hours are not a guess at the end of the week.
  3. Who was on site.
  4. What was actually used, as opposed to what was quoted. This is the important one.
  5. The customer's signature and the date, confirming the work was done.

Why the signature matters more than it looks. "Your guy never did the work" and "your guy broke that" are the two arguments that cost tradesmen money. A signed, dated job card ends both of them.

A simple job card layout

If you are still on paper, this is the layout to copy into Word or print as a book.

Paper job cards vs a job card app

A carbon-copy job card book works until the book is in the other bakkie, the page is covered in grease, or the figures never make it back to whoever writes the invoice. That last one is the expensive one: materials used on site that never reach the invoice are money you paid for and never charged.

A job card app keeps the card on the phone that is already in your pocket, attached to the quote it came from, and hands the numbers straight to the invoice.

How job cards work in BlitzBooks

Job cards are optional. Switch them on under Settings → Branding → Jobs & Scheduling; if you leave them off, nothing about the app changes.

Quote, job card and invoice in one app on your phone.

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Job cards for a team

Job cards come with every BlitzBooks plan. If you have a crew, the Team plan (R499/month) adds up to 5 field-tech logins. Techs sign in with their own account and see only job cards and the schedule, never your quotes, invoices, money or clients.

Run your job cards from your phone

BlitzBooks takes a job from quote to signed job card to invoice, built for South African trades. Free for 7 days, cancel anytime.

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Quotes, job cards and invoices on your phoneR200/month · 7-day free trial
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