The verdict in three sentences
A custom field service management (FSM) platform costs between 35,000 and 100,000 EUR in 2026, with the offline-capable technician mobile app being the most structuring item. An FSM SaaS (ServiceTitan, Praxedo) is cost-effective for a standard need, but custom wins when your job workflows and invoicing are specific. The ROI reads on two numbers: +20% jobs per day and -60% re-entry.
2026 budget breakdown
An FSM platform covers scheduling (dispatch, route optimization), the technician mobile app (job sheet, photos, signature, offline), geolocation and invoicing. Offline mode is essential in the field.
| Module | Scope | 2026 estimate (EUR) |
|---|---|---|
| Scheduling & dispatch | Assignment, routes, urgent jobs | 7,000 - 16,000 |
| Technician mobile app | Jobs, photos, offline | 10,000 - 25,000 |
| Signature & reports | Work orders, client sign-off | 4,000 - 10,000 |
| Geolocation | Real-time tracking, routing | 4,000 - 11,000 |
| Invoicing & quotes | Auto-generation, accounting export | 5,000 - 14,000 |
| Client portal | Requests, tracking, history | 5,000 - 13,000 |
| Full platform | Complete project | 35,000 - 89,000 |
Timeline: 4-8 months. Annual maintenance: 15-20% of build. Offline mode (deferred sync) noticeably raises the mobile cost.
Custom build vs FSM SaaS
FSM SaaS bills per technician per month; it's fast but standardized. Custom fits your workflows and avoids lifetime licensing.
| Criterion | FSM SaaS (ServiceTitan/Praxedo) | Custom platform |
|---|---|---|
| Cost per technician | 30 - 90 EUR/month | Included in build |
| 3-year cost (20 techs) | 22,000 - 65,000 EUR | 45,000 - 100,000 EUR |
| Offline mode | Standard | Custom, robust |
| Specific workflows | Limited config | Total |
| ERP/accounting integration | Connectors | Full via API |
| Data ownership | Vendor | You |
| Marginal cost/technician | High | Zero |
Under 10 technicians, SaaS is often the best choice. Above that, or with unusual workflows, custom becomes competitive because cost no longer grows with headcount.
Mini case study
Nadia runs an HVAC maintenance company in Miami: 22 technicians, ~90 jobs a day, manual invoicing after re-entering paper work orders. Before, each technician did ~4 jobs a day and admin re-entered data 3 hours a day. She invests 72,000 EUR in a custom FSM platform.
Outcome: +20% jobs per day (about 18 extra jobs/day) and re-entry cut by 60% (~1.8 h/day saved). At an average margin of 45 EUR/job, the 18 additional jobs represent ~180,000 EUR/year of extra margin (220-day basis), plus ~9,000 EUR/year of admin time. Payback in under a year.
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FAQ
Why is the mobile app so expensive?
Because offline mode (working without a network then syncing) demands a robust architecture: conflict handling, local cache, recovery. It's the most technical item, often 10,000 to 25,000 EUR.
Is FSM SaaS cheaper long term?
Not necessarily: at 20 technicians, three years of licenses easily reach 45,000-65,000 EUR, with no data ownership. Custom becomes competitive because its cost doesn't grow with headcount.
Does geolocation raise privacy concerns?
Yes, it must be limited to working hours, with staff informed and worker representatives consulted. It's built in cleanly from the start.
How long until go-live?
A scheduling + mobile app + report MVP ships in 14-18 weeks; geolocation, invoicing and the client portal follow in later increments.
Can the platform connect to our invoicing software?
Yes, via API or exports: work orders automatically generate quotes and invoices, removing re-entry and errors.
Let's scope your project. Tell us your technician count, job workflows and offline needs, and we'll price a fitting FSM platform (35,000-100,000 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.
