The verdict in three sentences
For a structural contractor with 45 staff, a per-seat licence becomes more expensive than a custom build after roughly 24 months. The custom route pays off when you want estimates, scheduling, mobile site time tracking and progress billing linked to your accounting without re-keying. Below 15 active users, stay on a licence; above that, the maths favours owning the software.
Off-the-shelf licence vs custom build: 2026 figures
Construction software is sold per user per month. For 45 staff with about 30 real users (site managers, foremen, office), the yearly cost climbs fast. A custom build is a one-off investment amortised over several years.
| Item | Off-the-shelf licence | Custom build |
|---|---|---|
| Entry cost | 0 EUR | 48,000 – 82,000 EUR |
| Subscription / user / month | 35 – 90 EUR | 0 EUR |
| Yearly cost (45 users) | 18,900 – 48,600 EUR | 0 EUR |
| Mobile time-tracking module | often add-on | 9,000 EUR included |
| Annual maintenance | included | 15%/yr (7,200 – 12,300 EUR) |
| Code ownership | no | yes |
| Trade-specific customisation | limited | full |
Over 3 years, licensing 45 users costs 56,700–145,800 EUR; the build runs 48,000–82,000 EUR plus two years of maintenance, roughly 62,000–106,000 EUR. The gap widens every extra year.
What custom changes on site
The gain is not only financial. Linking mobile time tracking to monthly progress billing removes double entry and makes work-in-progress invoicing reliable.
| Metric | Before (spreadsheets) | After (integrated tool) |
|---|---|---|
| Time to produce a progress statement | 1 day | -30% |
| Hours saved / site manager / week | — | 6 h |
| Time-sheet approval lead time | 3 – 5 days | real time |
| Hour-reporting errors | frequent | near zero |
| Client invoicing lead time | 15 – 20 days | 5 – 8 days |
Six hours per week per site manager, across four of them, is 24 hours a week redeployed to management rather than re-keying.
Mini case study
Thomas runs a structural contractor in Toronto with 45 staff and 30 software users. At 60 EUR/month/user, his licence costs 21,600 EUR/year — 86,400 EUR over four years. A custom build at 65,000 EUR plus three years of maintenance at 9,750 EUR/year (29,250 EUR) totals 94,250 EUR over four years, slightly more. But from year five, the licence passes 108,000 EUR while the build adds only 9,750 EUR. With 6 hours/week saved per manager, valued at 35 EUR/h across four managers over 45 weeks, he recovers about 37,800 EUR/year of capacity, making custom profitable by year two.
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FAQ
How much does custom construction management software cost in 2026?
Expect 48,000–82,000 EUR for an estimates + scheduling + progress-billing scope, plus 9,000 EUR for the mobile site time-tracking module. Annual maintenance is about 15% of the build.
What is the delivery timeline?
Between 12 and 18 weeks depending on accounting integrations. A first release (time tracking + scheduling) can ship in 6–8 weeks for quick field use.
At how many users does custom become worthwhile?
Above roughly 15 active users billed 35–90 EUR/month, you cross the 24-month break-even. For 45 staff, the saving is clear from year two or three.
Does mobile time tracking work without signal on site?
Yes, an offline module syncs hours once connectivity returns — essential on poorly covered structural sites.
Can we connect it to our existing accounting software?
Yes, via API or a standard export. That is the whole point of custom: no double entry between progress statements and accounting.
Let's scope your project. Tell us your scope (number of sites, users, accounting link) and indicative budget; we return a 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.
