The verdict in three sentences
Custom construction site tracking software in Berlin costs 45,000 to 110,000 EUR over 4 to 7 months. The return comes not from a gadget but from early detection of cost overruns, often worth -15% on overspend. Two features are non-negotiable on site: mobile time tracking and offline mode, because connectivity on site is unreliable.
Modules and their 2026 cost
The core of construction software links the plan to reality: logged hours, committed purchases, work progress statements. Here are the 2026 ranges.
| Module | Scope | Estimate (EUR) |
|---|---|---|
| Planning & progress | Tasks, milestones, site photos | 10,000-22,000 |
| Mobile time tracking | Hours, attendance, geolocation | 8,000-18,000 |
| Purchasing & subcontracting | Orders, receipts, commitments | 10,000-24,000 |
| Work progress statements | Progress, client billing | 9,000-20,000 |
| Cost tracking | Budget vs actual per site | 8,000-18,000 |
| Offline mode | Deferred field synchronization | 6,000-14,000 |
A full scope lands between 45,000 and 110,000 EUR, depending on the number of simultaneous sites and accounting integration.
ROI: what cost control delivers
On a construction site, an overrun caught too late is expensive. Real-time tracking changes the math.
| Indicator | Manual (spreadsheet) | Real-time software |
|---|---|---|
| Cost-overrun detection | end of site | within 48-72 h |
| Average overrun per site | 8-12% of budget | 3-6% |
| Hours logging time/week | 4-6 h/manager | < 1 h |
| Reliability of progress statements | medium | high |
| Client billing delay | 10-20 days | 3-7 days |
| Budget overrun reduction | baseline | -15% on average |
On 8M EUR of site revenue, bringing the average overrun from 10% to 6% represents about 320,000 EUR of margin preserved per year: the software pays for itself in the first year.
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Mini case study
Karim runs a Berlin construction firm: 18 active sites, 90 workers, 6 site managers. Before, each manager spent 5 h/week re-keying hours and purchases into spreadsheets, i.e. 30 h/week total, ~1,500 h/year valued at 45 EUR/h = 67,500 EUR/year. Software at 85,000 EUR + 14,000 EUR/year maintenance removes 70% of that data entry and flags overruns within 72 h. Between time saved (~47,000 EUR/year) and reduced overruns, ROI is reached in under 18 months.
FAQ
Is offline mode really needed? Yes: on site, network coverage is patchy. Time tracking and photos must be captured offline then synced automatically. Budget 6,000-14,000 EUR for reliable sync.
Can we integrate our accounting software? Yes, via journal export or API. Integrating committed purchases and progress statements eases reconciliation and avoids double entry.
How long to deploy? 4 to 7 months depending on scope. Mobile time tracking and cost tracking are often delivered first for quick impact.
How much is maintenance? Budget 12-18% of build cost per year for maintenance, updates and field support for workers.
Does it work on workers' smartphones? Yes, the mobile app is designed for simple field use: tap to clock in, photos, reports, even without a connection.
Let's scope your project. Give us your number of simultaneous sites, priority modules (time tracking, costs, statements) and indicative budget: we price a field control tool. 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.
