Names and some details have been changed to protect client confidentiality.
Cash flow is the lifeblood of every construction business. Yet many profitable-on-paper contractors and fit-out companies struggle with constant cash shortages. This case study reveals how a successful commercial contractor identified £52,000 in annual operational waste — and released £180,000 in trapped working capital.
The Crisis
Apex Construction specialised in commercial fit-outs — offices, retail spaces, and hospitality venues across the Midlands. On paper, the business looked healthy: £3.2 million turnover, solid project pipeline, repeat clients returning.
But owner James was struggling to sleep. Despite profitable projects, the business was constantly cash-poor. Overdraft maxed out, supplier payments juggled, payroll nearly missed twice in the past year.
"I don't understand it," James explained. "We're winning good work at good margins. But there's never any money in the bank."
The Real Problem
Construction has a cash flow problem baked in: you pay suppliers and wages upfront, but get paid weeks or months later. This is normal. What wasn't normal was how badly Apex was managing that gap.
The FLOW Audit revealed a business excellent at winning and delivering work — but haemorrhaging money through commercial processes.
What the FLOW Audit Found
WEALTH: £27,400 — The Cash Flow Disaster
Average Days to Invoice: 23 Days
Applications for payment submitted 2-3 weeks after work completed. With 45-day payment terms, Apex waited 68+ days to get paid. Financing cost: £8,200/year.
Undocumented Variations: 34% of Projects
A third of projects had variations never properly documented or charged. Verbal agreements and "goodwill" work never invoiced. Lost revenue: £11,400/year.
Bad Debt: £18,000 Written Off
Two clients went into administration owing money. No credit checks performed, no staged payments taken. Preventable loss: £7,800/year.
OUTPUT: £14,200 — Quality Costing Money
Rework Rate: 8% of Project Value
Long snagging lists, common defects. Most issues from poor trade communication and no in-progress quality checks. Rework cost: £9,600/year.
Completion Disputes
Without clear completion criteria, 4-5 projects per year ended in disputes about what "finished" meant. Cash flow impact: £4,600/year.
FIND: £6,800 — Pricing Problems
No Pricing Review Since 2023
Material costs up 13%, labour up 16% — but pricing barely moved. James still quoting at 2023 rates. Margin erosion: £6,800/year.
LOAD: £3,600 — Programme Overruns
Programme Management
Projects regularly overran by 15-20%, causing overtime costs and frustrated clients. Better planning could recover: £3,600/year.
Total Identified Savings
The Transformation
Key changes implemented over 8 weeks:
- Variation protocol: No additional work without signed variation order and agreed price.
- Invoice acceleration: Applications prepared weekly, submitted within 5 days of work completion.
- Credit control: Credit checks mandatory for new clients over £10k. Staged payments on projects over £25k.
- Completion clarity: Standard criteria agreed with clients at project start.
- Stage inspections: Mandatory sign-off at first fix, second fix, and pre-handover.
"I was so focused on winning work and delivering quality that I ignored the commercial side. I thought that was 'just admin.' Turns out, ignoring admin was costing me more than any project mistake ever had."
Six Months Later
- Days to invoice: Reduced from 23 days to 5 days
- Days Sales Outstanding: Halved from 68 to 34 days
- Variation capture: Now 100% documented
- Rework rate: Down from 8% to under 3%
- Overdraft: Cleared for first time in 4 years
- Working capital: £180,000 released back into business
The Bigger Picture
The £52,000 in identified savings was significant, but the real value was £180,000 in working capital released by fixing cash flow. That's money James can now invest in growth, equipment, or simply peace of mind.
James no longer lies awake worrying about payroll. The business that looked successful now actually is successful.
Is Cash Flow Strangling Your Construction Business?
Most construction SMEs have £150,000–£400,000 trapped in poor cash flow management. Find out how much of yours you could release.
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