The short answer
A business WordPress site typically carries managed hosting, premium plugin renewals, a security service and regular update work. A well-built custom site carries hosting, a CMS plan if used, and a few dependency updates a year. Over three years the custom site often costs less to run, even after a higher build cost.
- List every renewal: hosting, theme, plugins, security, backups.
- Count the hours spent on updates and fixing what updates break.
- Custom sites still need dependency updates; budget for them.
- The cheapest plan is the one that keeps the site patched.
Custom site vs WordPress at a glance
| What matters | Custom site | WordPress |
|---|---|---|
| Hosting | Static or small app hosting | Managed WordPress plan |
| Licences | CMS plan if hosted | Premium theme and plugins |
| Security | Platform defaults plus reviews | WAF or security plugin |
| Update work | A few times a year | Weekly or monthly |
Build a real budget
Pull last year’s invoices for hosting, licences and maintenance retainers. Add internal hours. Most owners are surprised by the total.
Why WordPress upkeep is frequent
Core, themes and plugins release fixes on their own schedules. Security fixes need applying within days, and each update can conflict with another plugin.
What custom upkeep looks like
A developer updates the framework and dependencies, runs the tests and deploys. Automated tools such as Dependabot flag vulnerable packages. Sources: GitHub Dependabot
Our verdict
Compare three-year totals including time. Pick the platform you will actually keep patched.
Questions people ask
Do custom sites need maintenance?
Yes, but less often: framework and dependency updates, plus content changes.
Is a maintenance retainer worth it?
If nobody in-house applies updates, yes. An unpatched site is the bigger cost.
Can I skip updates if the site works?
No. Unpatched plugins and dependencies are a common way in for attackers.
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