On most sites, tracking hours is still a Friday-night phone-around: chasing crew for their days, deciphering scribbled notes, and retyping it all before anyone can be paid. It works, just about, but it leaks time and money every single week. Here is how to track hours and timesheets on a construction site so the numbers are right, agreed, and ready to pay without the weekly scramble.

Why paper and WhatsApp timesheets cost money

Texts and paper feel free, but they are the most expensive way to run time. Hours get remembered wrong, messages get buried, and by the time you sit down to do pay you are reconstructing the week from memory. Every hour you spend chasing and retyping is an hour you are not earning, and every mistake is either money out of your pocket or an awkward conversation with the crew.

The deeper problem is that the record lives in the wrong place. A timesheet in a chat thread is not attached to the job, so it cannot feed your costs, your invoices or your CIS. You end up entering the same numbers two or three times.

What good time tracking actually captures

A timesheet that earns its keep records more than a number of hours. It captures:

  • who worked, and on which job or site;
  • the date, and days or hours or an agreed price;
  • a note if something needs explaining (call-out, overtime, weather delay);
  • ideally a photo of the work, so there is proof attached.

Tie each entry to the right job from the start and the same data can flow into labour costs, pay and invoices without anyone retyping it.

The Sitewise app showing a worker logging hours against a job The Sitewise app showing the office approving submitted hours
In Sitewise: a worker logs the day in under a minute, and the office approves, queries or rejects it while the week is still fresh.

Days, hours or price work

Trades pay in different ways, and your time tracking needs to cope with all of them. Some crew are on a day rate, some log actual hours, and some are on a fixed price for a task. The mistake is forcing everything into one shape. A good system lets a worker submit days, hours or an agreed amount against the job, so a bricklayer on price and a labourer on hours can both be recorded correctly and paid correctly.

A handwritten paper timesheet
Paper and WhatsApp timesheets feel free, but they are the most expensive way to run time: hours get remembered wrong and everything gets retyped.

Approvals: agree it once, not twice

The bit that saves the most grief is approval. When a worker submits their time and the office can approve, query or reject it there and then, you settle any disagreement while the week is fresh, not a fortnight later when nobody remembers. Every approved entry becomes a timestamped record of what was agreed, which protects both sides.

The argument about hours always happens later. Approving time as it comes in is how you stop having it at all.

From hours to pay and CIS

Hours are only step one. Approved time should feed straight into what you pay and what you invoice, with the CIS deduction worked out on the labour. When your time tracking and your pay are joined up, generating a subcontractor invoice becomes a tap rather than an evening with a calculator. Our guide on how to send a CIS invoice covers the invoice side once the hours are agreed.

The Sitewise app showing approved hours feeding the rota and pay
In Sitewise: approved hours flow straight into pay and invoices, so Friday night stops being admin night.

Going digital without the faff

Going digital does not have to mean a clunky system nobody uses on site. The test is simple: can a worker log the day in under a minute, from their phone, against the right job, even with poor signal? If yes, the record builds itself as the week goes on and Friday night stops being admin night. If the tool is slower than a text, the crew will just go back to texting.

That is the whole point of keeping time, pay and invoicing in one place rather than spread across paper, chats and a spreadsheet. It is the reason Sitewise ties them together: your crew log the day, you approve it, and the same figures flow into pay and invoices. The less retyping, the fewer mistakes, and the more of your week goes back into running the job.

How Sitewise helps

Take the admin off your hands.

Your crew log the day from their phone, you approve it in seconds, and it flows straight into pay and invoices. Friday night stops being admin night.

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Frequently asked questions

What is the best way to track hours on a construction site?
Capture each entry against the specific job at the time, recording who worked, the date, and days, hours or an agreed price, ideally from a phone on site. Then have the office approve it promptly so the figure is agreed while the week is fresh, and let it feed pay and invoices without retyping.
Why are paper and WhatsApp timesheets a problem?
Because the record is not attached to the job. Hours get remembered wrong, messages get buried, and you end up retyping the same numbers into pay and invoices. Every chase and re-entry costs time, and every error costs money or goodwill with the crew.
How do you handle day rate, hourly and price work in one system?
A good time-tracking setup lets each worker submit days, hours or a fixed agreed amount against the job, rather than forcing everything into one format. That way someone on price and someone on hours are both recorded and paid correctly.
Should workers approve or the office approve timesheets?
The worker submits and the office approves, queries or rejects. Doing that promptly means any disagreement is settled while the week is fresh, and every approved entry becomes a timestamped record that protects both sides.
Can tracked hours feed straight into pay and CIS?
Yes, if your time and pay are joined up. Approved hours should flow into what you pay and what you invoice, with the CIS deduction applied to labour, so raising a compliant invoice becomes a quick task rather than a manual calculation.
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