How much does a Drupal upgrade cost
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The same Drupal version upgrade can be a small maintenance task on one site and a full migration on another. The difference comes from content, modules and business logic.
What affects the price
Updating Drupal (opens in a new tab) depends on how much of the site follows standard Drupal patterns and how much is custom-built. The version number alone is not enough for estimating the work.
Typical cost drivers are:
- contrib module status and compatibility;
- custom modules and custom themes;
- the number of content types, fields and views;
- external APIs, payments, CRM or ERP integrations;
- test environment, automated tests and release planning.
Why a cheap quote can become expensive
If risks are not assessed, they appear in the middle of the project. The upgrade then becomes a chain of urgent fixes and the final cost is no longer controlled.
WebPro usually starts larger work with an audit and testing phase. It shows whether the site needs a normal Drupal upgrade, a Drupal migration or partial redesign of custom functionality. A good estimate is not the smallest number. It is the number where risks are visible.
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