Every GC owner I talk to has the same story. The job bid at 12%. It finished at 7%. And nobody can point to the day the margin disappeared.
Here’s the uncomfortable truth: it didn’t disappear on the jobsite. It disappeared in the two or three weeks between “we won the bid” and “we broke ground” — when everyone was busy celebrating the win and nobody slowed down to lock the job down.
Margin fade is a pre-construction problem. By the time your crew is on site, the leaks are already built in. The fix isn’t working harder in the field. It’s being more disciplined in the window when discipline is cheap.
Here’s the checklist. Eight items. None of them complicated. All of them skipped more often than anyone admits.
1. Read the signed contract against the final estimate — line by line
This is the single highest-leverage hour in the entire job. Somewhere between your final estimate and the signed contract, things changed. A scope line got added. An exclusion got softened. A schedule milestone moved up.
Anything in the contract that never made it into the estimate, you just bought. Sit down with both documents, go line by line, and flag every delta. Then price the deltas or negotiate them out before mobilization — not in month three when you have zero leverage.
2. Reconfirm every major sub’s bid in week one
Your electrical sub bid the job four months ago. Material prices moved. His backlog filled up. The foreman he priced it with quit. His number from April is a rumor, not a commitment.
Call every major trade in the first week. Reconfirm scope, price, and availability — in writing. Buyout slippage is the quietest margin killer in the business because it never announces itself. It just shows up as a change order you absorb because “we need to keep moving.”
3. Name one accountable project manager
Not two. Not “the team.” One name, attached to the job’s budget, schedule, and margin target.
Vague accountability is how $40,000 problems become surprises. When everyone owns the job, nobody owns the overrun. Put one person’s name on it, give them the budget, and make the margin target part of their job — not an afterthought they hear about at closeout.
4. Order long-lead items on day one
The light fixtures. The switchgear. The custom storefront. Whatever has a 10- to 14-week lead time — order it before the job trailer is set up.
The cost of a delayed long-lead item is never the item. It’s the idle crew standing around waiting. It’s the compressed finish schedule. It’s the overtime you pay in the last three weeks to hit a date you could have hit comfortably. One purchase order, written early, prevents all of it.
5. Set your billing rhythm before the first invoice
Decide now: billings go out on the 25th, every month, no exceptions. Pencil draws reviewed by the 20th. Retainage tracked separately.
Cash flow discipline set at the start of the job holds. Cash flow discipline you try to impose in month four doesn’t — because by then the pattern is set and the client is used to your sloppiness. Ten slipped billing days a month, across six months, is the difference between funding the job and the job funding your stress.
6. Photo-document existing conditions
Thirty seconds with a phone camera. Every room, every exterior elevation, every inch of the space you’re about to touch.
This is the cheapest insurance in construction. When the owner claims you cracked the tile in the lobby — tile that was cracked in 2019 — you don’t argue. You show the photo. No documentation, no defense. It’s a three-week argument versus a thirty-second habit.
7. Hold one kickoff meeting — with everyone
The PM, the super, every major sub, the owner’s rep. One room (or one call). One hour. Everyone hears the same plan once.
Half of all jobsite conflicts are just people operating from different versions of the plan. The kickoff doesn’t prevent every conflict, but it eliminates the dumb ones — the “nobody told me” ones that cost you a week and a change order you eat.
8. Turn the estimate into a real labor budget
Your estimate has a labor number. That’s not a budget. A budget is: this task, this many hours, this crew, this week.
Break the labor number into weekly targets by task and track actuals against them from week one. An overrun caught in week two is a correction — resequence, add a man, have a conversation. An overrun discovered in month four is a loss. Same problem, ten times the cost, because you found it late.
The two weeks when discipline is cheap
None of this is complicated. The GCs who hold their margins aren’t smarter than the ones who don’t. They’re just more disciplined in the two weeks before the job starts — when a phone call costs nothing, a purchase order costs nothing, and an hour with the contract costs nothing.
Once the job is moving, every correction costs ten times what prevention would have. That’s the whole game. Slow down before you speed up.
If margin fade keeps showing up in your closeouts and you can’t find where it’s coming from, that’s exactly what my 90-Day Business X-Ray is built to find — we trace the leak to its source and build the system that stops it. The 6-step roadmap lays out the full path from firefighting to a business that runs without you in the middle of every decision.
Leave a Reply