Replace the old system without stopping the business.
Legacy modernisation is replacing an ageing system the business depends on with a new one, one part at a time. Move off the system nobody wants to touch while your team keeps working normally the whole way through.
- Maps what the old system really does
- Builds the new modules beside it
- Rehearses the migration on a copy, row by row
- Retires the old system once nothing depends on it
What changes for your team
No big-bang weekend
Each module goes live on its own while the rest keeps running.
Every record accounted for
Counts and checks on each table before anything is switched off.
Changes you can undo
A backup before every change, and releases with health checks and rollback.
We have built this before
So your version starts from working patterns, not from zero.
- A 15-step production data-model migration with zero data lossOur own work
How the project runs
CALL
Talk it through
The problem, who has it and what good looks like.
SCOPE
Agree the scope
What is in and what is out, written down for you to approve.
BUILD
Build and review
AI agents do the volume; a senior engineer reads every change.
LIVE
Launch and run
We deploy, monitor and fix. The code and every key are yours.
What it costs
The price is fixed before work starts, and you pay only for what you approved.