Tuesday evening, 9 PM. His dinner's sitting cold on one side of the kitchen table. On the other: this week's timesheets from the Sorel site. He runs a finger down the column. Danny's at 46 hours. The contract is fixed-price.

The last three hours Danny worked today are at premium rates.

Nobody did anything wrong. The concrete pour ran long.

When overtime actually kicks in

Quebec's construction sector has its own overtime rules — and they don't match what the Act respecting labour standards says for most other industries.

What triggers the premium, depending on sector and occupation:

Hours beyond 8 in a day, depending on site and sector conditions
Hours beyond a weekly total — often 40, but it varies by trade
Work on Sundays, evenings past a certain hour, or specific public holidays

The multiplier isn't always 1.5x. Depending on the time of day, the day of the week, and the sector, it can hit 2x. Rate tables are published by the CCQ and updated twice a year. If your office manager is running last spring's numbers in October, she's calculating wrong — and she probably doesn't know it. That's not a knock on her. The table is complicated, and it moves.

The fixed-price trap

This is where it actually hurts.

You submit a quote. Your estimate: Danny at 40 hours, Kevin at 40 hours, the site is done. Price locked. Then a material delivery shows up two days late. Then a week of rain. Your client says the schedule has to hold. Your foreman tells the crew to push.

Danny finishes at 52 hours. Kevin at 49. Every hour past the threshold is at a premium rate. Those hours are on you — they weren't in the quote, and the client isn't paying for them.

This is how overtime bleeds a margin. Not all at once. One hour at a time, across two or three sites, spread across a week that started normal and ended expensive. The total only becomes visible at pay day, when there's nothing left to do about it.

Three things you can do right now

Track cumulative hours mid-week, not end of week. If you know on Thursday morning that Danny is at 36 hours with a full day still ahead, you can make a decision: cap it at 40, or restructure Friday. By 5 PM on Friday, it's already done — the threshold was crossed Wednesday afternoon and nobody caught it in time.

Build overtime risk into your fixed-price bids. On sites with weather exposure or uncertain delivery windows, 40 hours per person is the optimistic scenario. Many experienced contractors don't put a line for it in the quote — but they keep a buffer in their own margin calculation. A few premium hours per week over a four-month project can swing a comfortable job into a tight one.

Confirm your rate table twice a year. Set a calendar reminder for spring and fall. When the sectoral rates update, do a line-by-line comparison before the first pay cycle of the season. It takes an hour. The corrections you avoid take considerably more.

What visibility actually looks like

The real difference is watching hours accumulate while the week is still happening — not reconstructing them from memory on Friday.

When crew members clock in daily from their phone, you see running totals in real time. If Danny is at 36 hours on Thursday at noon, you know before it's too late to act. Overtime doesn't disappear — but it stops arriving as a surprise.

That's part of why the contractor in our case study tracks everything on mobile now. Eighteen employees, three active sites, tight margins. Surprise premium hours are exactly the kind of thing that eats a margin you thought was safe.

If you want to see what real-time tracking looks like for a team like yours, Heuro's features are here — or take 20 minutes with us if you'd rather talk it through first.

Key takeaways

Quebec's construction sector has its own overtime rules — stricter than standard provincial employment law in several respects
Rate tables update twice a year: running old numbers generates quiet, compounding errors
The real trap is the fixed-price contract: premium hours you didn't estimate get absorbed by your margin
Tracking cumulative hours mid-week — not after the fact — gives you time to act
Building an overtime buffer into bids on weather- or delivery-exposed sites isn't over-billing, it's margin protection