The Slow Bleed
No project loses money in one dramatic moment. It bleeds out slowly, through dozens of small cuts that individually seem insignificant but collectively destroy margins.
A half-day of standing time here. An unrecorded material delivery there. A verbal instruction that never made it into a formal change order. By the time these show up in the monthly CVR, weeks or months have passed. The evidence is stale. The opportunity to recover is gone.
Stopping the bleed requires understanding where it happens and intervening before it's too late.
The Usual Suspects
Cash leaks from construction projects through predictable channels:
Unrecorded variations: Site teams do the work because it needs doing. Someone will sort out the paperwork later. Except 'later' often means 'never', or at least 'too late to recover properly'.
Daywork black holes: Labour and plant assigned to deal with problems caused by others, but never formally recorded or claimed. The cost is real but invisible until final account.
Scope creep without compensation: Small additions and changes that individually don't seem worth the administrative effort to claim, but collectively represent significant unrecovered cost.
Delay costs absorbed: When the programme slips, extended preliminaries and additional supervision costs often get absorbed rather than properly attributed and claimed.
Defect rectification: Fixing problems caused by others, with costs buried in general project overhead rather than recovered from responsible parties.
The Time Bar Problem
Most contracts include notification requirements. Under NEC4, contractors typically have 8 weeks to notify compensation events. Miss that window and your entitlement evaporates, no matter how legitimate the claim.
Time bars exist because clients and their advisors know that old claims are hard to assess fairly. The longer you wait, the harder it is to establish what actually happened and why.
But time bars also mean that slow internal processes hand money to clients. If your site team doesn't recognise something as a compensation event, or if the paperwork takes too long to process, you lose entitlement you should have had.
Building Early Warning Systems
Stopping cash leakage requires catching it early. That means building systems that flag potential issues before they become time-barred problems.
Daily reconciliation: Someone should be reviewing site diaries every day, asking: did anything happen that might trigger contractual entitlement? If the answer is yes, is the notification process underway?
Weekly commercial reviews: Project managers and quantity surveyors comparing what happened on site with what's been formally recorded and claimed. Gaps should be investigated immediately.
Instruction tracking: Every verbal instruction should be logged and followed up. If it changes the scope, it needs formal recording. If it doesn't, the log proves compliance with original requirements.
Programme monitoring: Delays often creep in gradually. Regular programme updates identify drift early, while there's still evidence of what caused it.
The Records Foundation
Early warning systems only work if they're built on quality records. You can't identify a potential compensation event if you don't know what actually happened on site.
Essential records for cash protection:
- Daily site diaries: Comprehensive records of labour, plant, weather, visitors, instructions, and issues
- Photographic evidence: Time-stamped images of conditions, progress, and problems
- Correspondence logs: Every instruction, query, and response tracked and accessible
- Resource records: Who was on site, what equipment was used, and on what activities
- Delivery records: Material quantities, conditions, and any issues
These records need to be created contemporaneously—at the time things happen—and stored where they can be retrieved quickly when needed.
Empowering Site Teams
Site teams are on the front line. They see the problems, deal with the issues, respond to instructions. But they're rarely trained to think commercially about what they're experiencing.
Effective cash protection requires site teams who understand:
- What constitutes a compensation event or variation
- Why timely notification matters
- What information needs to be recorded
- Who to alert when something unusual happens
This isn't about turning engineers into quantity surveyors. It's about building awareness that commercial implications flow from site activities, and that good records protect everyone.
Technology as Enabler
Manual processes create bottlenecks. Paper-based recording creates retrieval problems. The delay between site activity and commercial awareness creates time bar risk.
Modern site diary software addresses these issues by:
- Making recording quick and easy, so it actually gets done
- Flagging potential compensation events for commercial review
- Providing instant access to historical records when needed
- Creating audit trails that support claims
The goal isn't to replace commercial judgement with automation. It's to ensure commercial teams have the information they need, when they need it, to make good decisions.
The Cultural Shift
Stopping cash leakage is ultimately about culture. It requires organisations where everyone understands that margin protection is a shared responsibility, not just a QS problem.
Projects that maintain their margins aren't lucky. They're disciplined. They record properly, review regularly, notify promptly, and follow up relentlessly. The cash still tries to leak out, but they catch it before it escapes.
Key Takeaways
- Cash leaks gradually through unrecorded variations, daywork, scope creep, and absorbed delay costs
- Time bars mean slow internal processes directly cost money—8 weeks under NEC4 for compensation events
- Early warning systems need daily diary review, weekly commercial checks, and instruction tracking
- Site teams need training to recognise commercial implications and record appropriately
- Stopping cash leakage is a culture shift where margin protection becomes everyone's responsibility
Related blogs you may like
8-week time bar: three near-miss patterns from real projects
A verbal instruction, cumulative weather, and quietly absorbed scope creep — three composite near-misses and the record habit that stops each one.

No Records, No Payments: The Cash Flow Reality Check
Cash flow problems rarely start with late payments. They start with poor records that can't support applications or defend against deductions. Documentation quality determines whether you get paid.

Stop Thinking About ROI, Start Thinking About the Cost of Inaction
Rather than focusing on potential software gains, calculate the financial toll of maintaining the status quo. Admin costs, missed revenue, disputes, and finance costs compound into serious money.


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