The verdict in three sentences
A construction director rarely loses money on the balance sheet; they lose it project by project, usually without seeing it before the final account. A bespoke cost-tracking system (50,000 to 130,000 EUR) or a trade SaaS (40-90 EUR/user/month) exposes margin drift in real time through interim valuations and on-site timesheets. The real ROI isn't the licence price, it's the 3 to 5 margin points recovered on jobs you would otherwise have let slip.
Bespoke or SaaS: what you actually pay in 2026
The question isn't "software or not" but "how far do I automate timesheets, budget and progress billing". A generic SaaS covers 70 % of needs but stumbles on your cost analytics and valuations. Bespoke aligns the tool to your analytical chart of accounts.
| Option | 2026 cost (order of magnitude) | Timeline | Best for |
|---|---|---|---|
| Construction trade SaaS | 40-90 EUR/user/month | 2-4 weeks | 5-30 workers, standard process |
| Bespoke modules | 50,000-80,000 EUR | 3-4 months | Specific cost analytics |
| Full platform | 90,000-130,000 EUR | 5-7 months | Multi-site, accounting/payroll link |
| Field mobile app only | 18,000-35,000 EUR | 6-10 weeks | Timesheets + photos + reports |
| Annual maintenance | 15-20 % of build | recurring | Fixes + enhancements |
The table that changes margin: drift caught early
The core of the software is continuously comparing committed budget against actuals, line by line. Spotting 8 % labour drift at valuation 3 on a six-month job means you can react; discovering it at final account means you eat the loss.
| Tracked item | Without software | With software | Impact |
|---|---|---|---|
| Margin drift detection | Final account (month 6) | Valuation 3 (month 2) | 4 months to react |
| Worker timesheets | Paper, re-keying | Real-time mobile app | -6 h/week admin |
| Interim valuations | Manual Excel | Generated from progress | -2 days/valuation |
| Accounting integration | Re-keyed invoices | Automatic export | -1.5 days/month |
| Average project margin | Baseline | +3 to 5 points | Direct cash |
Mini case study
Thomas runs a structural works SME in London: 24 workers, 12 active sites, 6.2 M EUR turnover. He used to discover drift at final account. After a bespoke system at 72,000 EUR (delivered in 4 months), he catches labour overruns at the interim valuation. On a single 480,000 EUR job, reacting in time preserved 4.2 margin points, or 20,000 EUR. Over the year, the estimated margin gain (+3.5 points on 6.2 M EUR) exceeds 210,000 EUR: the tool pays for itself in under 5 months of use.
FAQ
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What does a construction cost-tracking system really cost in 2026?
Expect 40-90 EUR/user/month as SaaS, or 50,000-130,000 EUR bespoke depending on scope. Annual maintenance runs 15-20 % of the build cost.
How fast is it operational?
A SaaS deploys in 2-4 weeks; a full bespoke build takes 3 to 7 months. The field timesheet app can ship first, within 6-10 weeks.
Should I connect it to my accounting?
Yes, it's the most profitable gain: automatic export of invoices and valuations to accounting saves roughly 1.5 days per month of re-keying and hardens your analytics.
Will my workers actually use the mobile app?
Mobile timesheets work if they beat paper: 30-second entry, photos, offline mode for no-signal areas. It's a key scoping criterion.
What ROI should I realistically expect?
The realistic target is +3 to 5 project margin points from early drift detection, plus 6-8 hours/week of admin saved. On an SME with several million in turnover, payback is measured in months.
Let's scope your project. Tell us your number of active sites, your accounting tool, and whether you want the mobile timesheet app first or the full platform: indicative budget 50,000-130,000 EUR. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
