The verdict in three sentences
In 2026, a construction project management tool ranges from a SaaS at 25-50 EUR/user/month to a custom build at 45,000-110,000 EUR. SaaS goes live in 2 to 4 weeks but forces its own fields and limits; custom software fits your processes (progress billing, subcontracting, retention) and becomes an asset you own. The switch pays off once you exceed 15 field users or your manual Excel exports cost more than 8 hours a week.
SaaS vs custom: the real 2026 comparison
The construction market offers dozens of generic tools. The issue is never the single feature, but how it fits the way you quote and invoice. Here are the 2026 orders of magnitude.
| Criterion | Construction SaaS | Custom |
|---|---|---|
| Entry cost | 25-50 EUR/user/month | 45,000-110,000 EUR |
| 20 users over 3 years | 18,000-36,000 EUR | 45,000-110,000 EUR (one-off) |
| Time to launch | 2-4 weeks | 3-5 months |
| Customization | Limited to options | Total |
| Progress billing | Standard | On your template |
| Code ownership | No | Yes |
| Evolutions | Vendor roadmap | On demand |
Over 3 years, a 20-person team pays 18,000 to 36,000 EUR in SaaS while owning nothing. Custom becomes profitable as soon as personalization removes daily re-keying or invoicing errors.
What saves 6 to 12 hours a week
The gain does not come from one magic feature but from removing re-keying between field and office. Here are the high-impact modules and their measured effect.
| Module | What it replaces | Est. weekly saving |
|---|---|---|
| Mobile field time-tracking | Paper sheets + Excel | 3-5 h |
| Shared site schedule | Wall boards, calls | 2-3 h |
| Progress billing | Accounting re-keying | 2-4 h |
| Geotagged photos and reports | Scattered emails | 1-2 h |
| Subcontractor tracking | Manual follow-ups | 1-2 h |
For a site manager costing the equivalent of 45 EUR loaded per hour, 8 hours saved per week is about 15,000 EUR per year per person.
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Mini case study
Thomas runs a 28-employee structural works SME near Nantes, with 4 site managers and one assistant. Every week, re-keying time sheets and preparing progress billing takes about 22 combined hours. A custom build at 62,000 EUR, delivered in 4 months, brings that total down to 6 hours. Saving: 16 hours/week, about 720 hours/year valued at 45 EUR, i.e. 32,400 EUR a year. Return on investment in under 24 months, excluding fewer invoicing errors.
FAQ
How much does custom construction software really cost in 2026? Expect 45,000 to 110,000 EUR depending on the number of modules (scheduling, time-tracking, progress billing, subcontracting, mobile). A first useful scope often lands around 55,000 EUR.
Isn't SaaS cheaper? Short term yes, at 25-50 EUR/user/month. But 20 users over 3 years cost 18,000 to 36,000 EUR recurring, with no code ownership and no fine fit to your templates.
How fast will my field teams be autonomous? The mobile time-tracking app is usually adopted in 2 to 3 weeks because it replaces paper. Two days of training are enough in most SMEs.
Can it connect to my accounting? Yes, via export or API to most accounting software. A well-designed bridge removes 2 to 4 hours of weekly re-keying.
Does it work offline on site? A custom mobile app can store time entries and photos locally then sync when the network returns, essential on poorly covered sites.
Let's scope your project. Tell us your priority modules (scheduling, time-tracking, progress billing), your number of field users and your indicative budget, and we'll frame the solution. 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.
