The verdict in three sentences
For a construction firm owner or property developer in New York, custom software (job tracking + progress billing + cash flow) costs $60,000 to $150,000 plus maintenance of $2,500 to $6,000/month. A vertical construction SaaS (Procore, Buildertrend, CoConstruct) bills $50 to $120/user/month, often rigid for local processes. Custom offers total control of jobs, purchasing, and billing in one tool, saving 8 to 12 hours/week on takeoffs and progress billing.
Custom vs vertical SaaS: the 2026 cost grid
SaaS looks accessible at first but its per-user cost adds up fast. Custom freezes the investment and fits your exact processes.
| Item | Vertical SaaS | Custom |
|---|---|---|
| License / development | $50-120/user/month | $60,000-150,000 |
| Maintenance | Included | $2,500-6,000/month |
| Job tracking | Standard | Tailored to your takeoffs |
| Progress billing | Generic | Built to spec |
| Accounting / payroll connectors | Add-ons | Included in project |
| Process fit | Partial | Total |
For 10 users, SaaS at $90/user/month is $10,800/year; over 3 years, $32,400 — enough to fund a durable custom base.
Before/after cost and 3-year TCO
The real gain is measured in recovered hours and avoided payment delays.
| Metric | Before (manual/Excel) | After (custom) |
|---|---|---|
| Takeoffs & progress billing time | 12 h/week | 2-4 h/week |
| Payment delays | Baseline | -15% |
| Cash flow visibility | Monthly, uncertain | Real-time |
| Billing errors | Frequent | Rare |
| 3-year TCO (custom) | — | ~$130,000 (dev + maintenance) |
| 3-year TCO (SaaS 10 users) | ~$32,400 | — |
The 2026 custom delivery timeline is 12 to 20 weeks depending on scope (jobs, purchasing, progress billing, cash flow, dashboard).
Mini case study
Mark, owner of a 40-employee construction firm in New York, runs progress billing on Excel: 12 hours/week lost and client payment delays straining cash flow. Custom software at $95,000 + $4,000/month maintenance automates progress billing and payment tracking. Estimated gain: 9 hours/week freed and 15% fewer payment delays. On a billing volume of $6M/year, cutting delays improves available cash flow by hundreds of thousands of dollars — the investment is amortized by year two.
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FAQ
Why choose custom over vertical SaaS?
SaaS is often rigid for local takeoff and progress-billing processes and depends on constant connectivity. Custom fits your exact workflow and freezes the cost.
What is the annual maintenance cost?
Budget $2,500 to $6,000/month, or $30,000 to $72,000/year, for fixes, enhancements, and support. It is essential to keep the tool alive.
Does the software handle purchasing and cash flow?
Yes, custom scope can cover jobs, supplier purchasing, progress billing, and cash flow in one tool, with accounting and payroll connectors.
How long to deliver?
Standard 2026 timeline is 12 to 20 weeks. A first module (job tracking + progress billing) can ship in 10 weeks, with cash flow added afterward.
Does it work with unstable connectivity?
A custom build can include partial offline mode and deferred sync — essential on job sites with poor network coverage.
Let's scope your project. Tell us your number of jobs, users, and priorities (progress billing, cash flow, purchasing), and we will price a custom 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.
