The verdict in three sentences
Custom site tracking software for a construction firm costs between 30,000 and 70,000 EUR in 2026, with Gantt scheduling, a field app and budget tracking. The return comes from budget vs actual in real time: seeing an overrun form lets you correct it before it gets expensive. Well-managed sites cut overruns by around 20 %, which repays the software on the first program.
What site tracking software covers
Construction suffers a classic gap between office and field: information comes back late, often on paper or by text. Custom software closes that gap by connecting scheduling, timesheets and costs.
| Module | 2026 scope | Ballpark (build) |
|---|---|---|
| Multi-site Gantt scheduling | Tasks, dependencies, milestones | 6,000 - 12,000 EUR |
| Field app | Timesheets, photos, reports | 8,000 - 15,000 EUR |
| Progress tracking | % per package, load curve | 5,000 - 10,000 EUR |
| Budget vs actual | Spend, commitments, alerts | 7,000 - 14,000 EUR |
| Subcontractor management | Contracts, valuations, retention | 5,000 - 11,000 EUR |
| Accounting / payroll integration | Exports, logged hours | 4,000 - 9,000 EUR |
A firm with 3-4 simultaneous sites targets 30,000-45,000 EUR. A multi-program developer with fine financial control and subcontractor management pushes toward 60,000-70,000 EUR.
Real-time vs manual tracking: the numbers
The real gain is not comfort but money. On a site, every week of drift caught late is paid in penalties, overtime and rework.
| Metric | Manual (Excel/paper) | Real-time (app) |
|---|---|---|
| Field reporting delay | 3 - 7 days | Real time |
| Overrun detection | At invoice | At commitment |
| Average budget overrun | 8 - 15 % | 6 - 12 % (-20 % relative) |
| Double data entry | 4 - 8 h/week | Near zero |
| Subcontractor disputes | Frequent | Traced, documented |
| Reporting reliability | Low | High |
On a 2 million EUR works program, cutting the overrun from 12 % to 10 % is 40,000 EUR saved, the price of the whole software.
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Mini case study
Mr Guerin, works director of a structural contractor in Toronto, runs 5 simultaneous sites for 6 million EUR annual volume. His average overruns run at 11 %. He orders custom software at 48,000 EUR with a field app for his 12 site managers.
Math: budget vs actual tracking drops the average overrun to 9 %, a 2-point gain on 6 million = 120,000 EUR/year. Add removing 6 h/week of double entry by the design office (at 35 EUR/h): 6 x 35 x 45 weeks = 9,450 EUR/year. The 48,000 EUR investment pays back in under 5 months in the first year alone.
FAQ
Does the field app work without a network? Yes. Offline mode is essential on site: the site manager logs timesheets and photos, and sync happens when the connection returns. It is a point to scope from the start.
Can the software link to our accounting? Yes, via the integration module (4,000-9,000 EUR). Committed spend, works valuations and logged hours export to your accounting and payroll software without re-entry.
How long to deploy? Expect 5 to 7 months. The field app and training the site managers are the key steps: a tool the field does not adopt reports no reliable data.
Does it handle subcontracting and valuations? Yes, with contracts, monthly valuations, retention and approval. That is often the source of the costliest disputes, so a module to get right.
Is budget vs actual really reliable? It is if commitments are entered as they happen. The software enforces that discipline by tying each expense to a package; that is what makes the overrun alert credible.
Let's scope your project. Give us your number of sites, annual volume and accounting/payroll integration needs and we will price a scope with a field app. 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.
