Legacy software modernisation, one safe step at a time.

Old systems slow teams down and create risk. We modernise them in stages, moving data and workflows to a secure, maintainable platform while the business keeps running.

Starting at £6,100 Based on our instant-quote algorithm for a focused modernisation project, one user, flexible timeline. Get your exact range

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In short

Legacy software modernisation replaces or upgrades ageing systems so they are secure, maintainable and fit for today. LOLCorp migrates systems in safe stages, preserving your data and keeping the business running.

01 Assess

We review the current system, data and dependencies.

We replace the system piece by piece, so there is no big-bang cutover to fear.

02 Plan

Define the target and the safest order of migration.

Careful data migration, with validation, so history and reporting survive the move.

03 Migrate

Replace modules in stages, running old and new side by side where needed.

Modern frameworks and infrastructure that receive security updates.

04 Retire

Switch off the legacy system once everything is verified.

Less manual work, fewer workarounds and simpler hosting.

Custom business software to replace legacy systems

The usual outcome of legacy software modernisation is custom business software that fits how you work today, delivered by a software engineering company that stays with you after launch. For larger organisations we also deliver enterprise software development and software product development to rebuild critical platforms safely.

Signs it is time to modernise

Common signs include software that only one person understands, an unsupported operating system or framework, slow performance, painful manual workarounds, security audits you dread, or integrations that keep breaking. Each is a risk to the business, and the risk rises the longer it is left.

Modernising does not have to mean a risky rewrite. We assess what the system really does, decide what to keep, rebuild or retire, and migrate in stages. For many organisations the result is custom business software that finally matches how the company works, hosted on modern infrastructure with proper monitoring.

Read about custom software vs off-the-shelf to decide whether to rebuild or replace, and our cloud management service for the hosting side.

Guides

Read before you decide.

Guide · 6 min

Custom software vs off-the-shelf: how to decide

Choose off-the-shelf software when your needs are common and speed matters most. Choose custom software when your workflow is a competitive…

Read guide

Guide · 6 min

The custom software development process, step by step

A custom software project moves through discovery, a fixed-scope quote, design and prototyping, build in short sprints, testing, launch,…

Read guide

Guide · 8 min

Cloud cost optimisation: 9 ways to cut your cloud bill

Cut cloud costs by measuring spend first, then right-sizing oversized resources, switching off idle environments, deleting unused assets,…

Read guide

Why it works

Why teams choose LOLCorp for Legacy Software Modernisation

Staged, low-risk migration

We replace the system piece by piece, so there is no big-bang cutover to fear.

Data preserved

Careful data migration, with validation, so history and reporting survive the move.

Secure and supported

Modern frameworks and infrastructure that receive security updates.

Lower running costs

Less manual work, fewer workarounds and simpler hosting.

Deliverables

Everything included, nothing hidden.

  • System and risk assessment
  • Target architecture and migration plan
  • Staged rebuild or replatforming
  • Data migration with validation
  • Documentation and training

Our approach

A clear path to launch.

  1. 1

    Assess

    We review the current system, data and dependencies.

  2. 2

    Plan

    Define the target and the safest order of migration.

  3. 3

    Migrate

    Replace modules in stages, running old and new side by side where needed.

  4. 4

    Retire

    Switch off the legacy system once everything is verified.

Instant quote generator

Get a realistic price in 60 seconds.

Tell us what you are building, choose the pages and features you need, and get a realistic ballpark quote, instantly. No sales calls. No hidden fees. Your price is revealed at the end.

  1. 1Project
  2. 2Features
  3. 3Your details
  4. 4Your quote

What are you building?

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Software & apps

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Where should we send your quote?

We email you a copy with your quote number, valid for 30 days. No obligation, no pressure.

Analysing your project requirements…

  • No obligation, no pressure
  • 100% free automated quote
  • Your price is revealed at the end

Estimates are indicative, not a binding offer. Fixed price confirmed after discovery.

FAQ

Legacy Software Modernisation: common questions

What is legacy software modernisation?

Updating or replacing ageing software so it is secure, maintainable and aligned with how the business works today.

Do we have to stop work during the migration?

No. We plan staged migrations so users can keep working.

Can you keep our data?

Yes. We migrate and validate data so history and reporting are preserved.

Should we rebuild or replace with a product?

It depends on how unique your workflows are. We will give a straight recommendation after the assessment.

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