Legacy .NET modernisation.
Modernise the WebForms, .NET Framework and SQL Server systems your UK business relies on. Plan a staged move to .NET and Azure around business continuity, tested behaviour and a rehearsed rollback.
Strangle it, do not stop it
A full rewrite means a long period with no delivered value and a hard cut-over. We avoid both. New functionality is built on .NET 10 behind a routing layer, and traffic moves module by module while the legacy application keeps running.
Each module that moves is covered by characterisation tests written against the old behaviour first, so the migration can be proved rather than hoped for.
When an application has to move
Out of support
The framework, the operating system or the database version no longer receives security updates.
Slow to change
A small change takes weeks, because there are no tests and every release is deployed by hand.
Key-person risk
One person understands the code, and the original developer is no longer available.
Hardware in the building
The business depends on a server nobody wants to reboot, with a backup nobody has restored.
From where you are, to .NET 10
ASP.NET WebForms Blazor on .NET 10
Page by page, behind a shared authentication cookie so both applications run side by side.
.NET Framework MVC / WCF ASP.NET Core APIs
Contracts preserved, endpoints re-hosted on Azure Container Apps and cut over per consumer.
WinForms / WPF desktop Web application
Business logic extracted into services first, then a browser front end for the same workflows.
On-premise SQL Server Azure SQL
Assessed with the Data Migration Assistant, migrated with reconciliation and a rehearsed rollback.
Manual deployment Azure DevOps CI/CD
Pipelines, Bicep infrastructure and per-branch environments, so releases stop being events.
Plan your legacy migration with a UK company
Worktechlabs is based in Arundel, West Sussex. A migration starts with the application's dependencies, business rules and operational constraints. We identify a first module, agree how to compare old and new behaviour, and define the conditions for a safe release or rollback.
See an existing business application moving to modern .NET services.
Start with a three-week assessment
Fixed price, fixed duration. You receive a document you can act on with or without us.
01
Inventory
Every application, integration, scheduled job and database in the estate, with its owner.
02
Risk and cost
What is out of support, what is fragile, and what each option costs to run on Azure.
03
Sequenced plan
What moves first, what is rewritten, what is retired and what is deliberately left alone.
04
Costed first phase
A fixed price and date for the first module, so the programme can start without a full commitment.