Replatforming costs: modernize without guesswork
Estimate budget and timeline for a safe platform migration.
Replatforming cost calculator
How much does your platform migration cost?
Interactive estimate based on your inputs.
Typical initial range in many projects: EUR 25,000-120,000 excl. VAT.
Methodology: The estimates are based on historical project data, complexity drivers and standard implementation assumptions.
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FAQ
Replatforming costs
Investment profile
Why is replatforming more than a redesign?
You are moving data, integrations, permissions and often SEO equity while keeping revenue flowing. Parallel runs, strangler patterns and contract tests add engineering overhead beyond visual refresh work.
How does near-zero downtime shape cost?
It requires dual stacks, careful traffic shifting and rehearsed rollback. Cheaper maintenance windows trade revenue risk for simpler engineering.
Quality gates
What is the point of contract testing here?
Interfaces drift while both old and new cores run. Contracts catch breaking changes before customers do, saving emergency fixes.
Why budget SEO migration explicitly?
Redirects, content parity checks and ranking monitoring need specialist time. Skipping it shows up as traffic loss with hard-to-reverse recovery cost.
Calculator, follow-up costs & next steps
What does replatforming projects typically cost in a mid-market scenario?
The Replatforming Calculator provides a realistic initial range. The strongest drivers are migration complexity and target architecture.
What does replatforming projects cost with aggressive timeline and multiple integrations?
In that setup, both delivery effort and risk buffering increase. Key impacts usually come from SEO/data migration, integrations and go-live risk.
Which follow-up costs are often underestimated for replatforming projects?
Typical follow-up costs include operations, monitoring, maintenance, change requests and additional integrations after the initial rollout.
Which risks impact budget and timeline the most?
The biggest risks are unclear requirements, dependencies on third-party systems, data quality issues and late scope changes.
Can I use this estimate for internal budgeting?
Yes. The range is built for management-level planning and is refined into milestones and budget blocks in a short discovery call.
What is the next practical step after the Replatforming Calculator?
We review your inputs, prioritize open points and provide a concrete implementation path. Recommendation: plan for a parallel transition phase.
Typical pricing models (overview)
| Model | When it fits | Budget & flexibility | Typical risks |
|---|---|---|---|
| Fixed price (fixed scope) | Clearly defined scope, stable requirements, repeatable delivery. | Predictable total cost; little room for change without a change order. | Scope creep leads to change orders or quality trade-offs. |
| Time & Material | Discovery, legacy, evolving requirements, or close collaboration. | Maximum flexibility; budget transparent via hourly or daily rates. | Without prioritisation, effort can grow—backlog and reviews matter. |
| Retainer / maintenance package | Ongoing operations, updates, small features, and support. | Agreed capacity per month; predictable follow-on cost. | Large changes may still need a separate estimate. |
| Hybrid (milestone + T&M) | MVP or phased releases with clear go-lives, then iterate. | Core delivery fixed price; extensions on a time-and-materials basis. | Define contractually what is in scope vs. extra work. |
Calculators on this page provide indicative ranges; we choose the right model with you based on risk, scope, and planning horizon.
Costs & next steps
The ranges shown are indicative. For a binding quote we discuss scope, priorities and funding options in a free intro call. Many digitalization projects qualify for grants – try our funding calculator.
Browse all cost calculators, explore services and typical solutions. Questions about Replatforming? Contact us.