What do software maintenance and operations cost?
Updated: 2026-11
After launch, custom software incurs ongoing costs for framework and library updates, security patches, hosting and monitoring, and support. How high they are depends mainly on architecture, the number of dependencies, required response times and whether technical debt is reduced continuously or allowed to accumulate.
Many software budgets end at launch. That is the most common reason applications are considered “legacy” after a few years: not because they were badly built but because nobody looked after them.
Maintenance is not the same as evolution. Maintenance keeps an application secure and running; evolution adds features. Separating the two shows what the software really costs.
What drives the cost
Dependencies
Every library and framework brings updates. Few, well-chosen dependencies lower running costs.
Security patches
Critical vulnerabilities must be closed at short notice. Regular updates mean small steps rather than big jumps.
Hosting and monitoring
Managed platforms cost monthly but save operational effort. Monitoring and alerts belong with them.
Response times
Support with guaranteed weekend response costs more than office-hours support. The question is what the business needs.
Technical debt
Shortcuts taken in development make every later change more expensive. A small fixed share for reduction prevents a big backlog.
Documentation and knowledge
If knowledge sits with one person, every maintenance task is more expensive and riskier.
How we price
- 01
Maintenance contract with allowance
Fixed monthly fee for updates, patches and an allowance for small changes.
- 02
Operations with service levels
Defined response and recovery times for business-critical applications.
- 03
Time and materials
For applications with little change, combined with regular update windows.
We deliberately publish no online prices: every case differs. After a short first conversation you receive a binding fixed price or clear frame.
Parent service: Custom Software Engineering
Matching offers
Legacy modernisation
Legacy modernisation makes grown software maintainable and future-proof again — step by step rather than in a risky big bang. The result is a system that can evolve without halting operations or rebuilding everything at once.
Next.js web application at a fixed price
A bespoke web application on Next.js — fast, strong on SEO and maintainable, with a clearly bounded feature set and a binding fixed price. The result is a production-ready application without the usual cost surprises of open-ended hourly billing.
SaaS security & RLS audit
A SaaS security audit targets tenant isolation specifically: is row-level security watertight, does access control hold, are typical Supabase pitfalls (service role in the client, missing RLS) avoided? The output is a finding with concrete fixes.
FAQ
Can we take over maintenance ourselves later?
Yes, if code, documentation and access are handed over completely. We build to avoid lock-in.
What happens without maintenance?
The application keeps running at first but becomes less secure and harder to change every month. Catching up later usually costs more than ongoing care.
Do you take over other vendors’ software?
Yes, after reviewing code, dependencies and documentation so risks are known before takeover.