ServiceLegacy Modernisation

Legacy System Modernisation Australia

Replace fragile, outdated software with a modern cloud platform. Fixed price, delivered in weeks, zero data loss. We have done it before, with a named client, a public case study, and verifiable results.

8 Weeks
Delivered in
Zero
Data lost
16 Years
Oldest system replaced
Fixed
Price model

Signs Your Legacy System Is a Business Risk

Legacy systems rarely fail all at once. They fail slowly, in ways that are easy to ignore until they aren't. If any of these sound familiar, your system has likely passed the point where patching is the right answer.

  • Running on Classic ASP, VBScript, ColdFusion, or legacy PHP that is no longer maintained
  • Data lives on a physical server inside the office; one hardware failure stops the business
  • Staff cannot work effectively outside the building due to slow or no remote access
  • Every change feels risky; nobody wants to touch the codebase in case something breaks
  • Clients or customers have no self-service access; every query goes through your team
  • The original developer is unavailable, retired, or the documentation no longer exists
  • No automated backups, no failover, no monitoring; you find out about problems from staff
  • Cannot integrate with modern tools, APIs, or reporting platforms without significant effort
Legacy Systems

Classic ASP, Microsoft Access, VB6 and More: Legacy Systems We Replace

We work with systems built on technology that is no longer supported, maintained, or practical to scale. Here are the most common starting points.

Classic ASP / VBScript

The most common legacy stack we replace. Classic ASP applications running on Windows IIS, often backed by Microsoft Access or early SQL Server.

Microsoft Access Databases

.mdb and .accdb files used as production databases. No concurrent access, no remote connection, single point of failure.

Visual Basic 6 (VB6)

Windows desktop applications built in VB6. No longer supported by Microsoft. Migrated to web-based cloud platforms.

ColdFusion Applications

Legacy CFML applications that are expensive to licence, difficult to host, and hard to find developer support for.

Legacy PHP (4 / 5)

Old PHP applications without frameworks, type safety, or modern security standards. Often tightly coupled with no separation of concerns.

Excel / VBA Systems

Spreadsheet-based operations that have outgrown their original purpose. Replaced with purpose-built internal tools with proper databases.

How It Works

Our Legacy System Modernisation Process

A structured approach that keeps the business running throughout, validates data integrity at every step, and hands over a system you fully own.

01

Technical Audit

We map the existing system end-to-end: every data table, every workflow, every integration point. You get a written risk assessment and a clear picture of what the new platform needs to do.

02

Architecture & Scoping

Cloud-native architecture designed from scratch. Database schema, API structure, portal design, and user roles all agreed before any code is written. Fixed-price quote at this stage.

03

Parallel Build

The new system is built while the old one stays live. Weekly demos on a staging environment. You see real, working software every week, not a big reveal at the end.

04

Data Migration & Validation

Data is exported, transformed, and loaded into the new database. Multiple validation passes compare record counts and spot-check integrity. We do not proceed until counts match perfectly.

05

Cutover & Handover

Zero-downtime transition planned for a low-traffic window. Full source code, documentation, and training at handover. You own everything from day one.

Deliverables

What a Legacy Modernisation Project Delivers

Modern cloud-hosted application

React + TypeScript frontend, managed PostgreSQL database, global CDN, 99.9%+ uptime SLA.

Full data migration

Every record from the legacy system moved to the new database with zero data loss, fully validated.

Purpose-built portals

Separate interfaces for staff, clients, and management, each scoped precisely to what that user group needs.

Role-based access control

Granular permissions enforced at the database level, not just in application code.

Automated backups

Daily automated backups, point-in-time recovery, and managed infrastructure. No more manual backup routines.

100% code ownership

All source code, database schemas, and IP handed over at completion. No licensing fees, no lock-in.

Technology

Legacy Technology vs Modern Cloud Stack

Legacy (before)
Modern cloud (after)
Classic ASP / VBScript
React + TypeScript
Microsoft Access / early SQL Server
PostgreSQL · managed cloud
Physical server, inside office
Cloud hosting · global CDN
No remote access
Any device, anywhere
No client-facing portal
Self-service portal per user type
Manual backups or none
Automated daily backups, point-in-time recovery
No monitoring or alerting
Uptime monitoring, error tracking
Pricing

Legacy Modernisation Cost in Australia

Fixed-price engagements. Quoted upfront after the technical audit. No hourly billing, no scope creep.

System Audit

$2,500–$5,000

1–2 weeks

A standalone technical audit of your existing system, not just a sales call. You get a written report covering system risks, data dependencies, migration complexity, and a clear recommendation.

  • Full system and codebase review
  • Data model mapping
  • Risk assessment report
  • Migration complexity estimate
  • Architecture recommendation
  • Fixed-price quote for the full project
Most common

Core Modernisation

$25,000–$60,000

6–10 weeks

A full replacement of the legacy system with a modern cloud platform: one primary portal, full data migration, and all core business logic rebuilt.

  • Complete legacy system rebuild
  • Full data migration, zero data loss
  • Single purpose-built portal
  • Cloud hosting with managed backups
  • Role-based access control
  • Source code handover

Full Platform

$60,000–$120,000+

10–16 weeks

Multi-portal platforms with complex data migrations, integrations, and advanced workflows. Suitable for systems with multiple user types, high data volumes, or significant new capability requirements.

  • Everything in Core Modernisation
  • Multiple purpose-built portals
  • Third-party API integrations
  • Advanced analytics and reporting
  • Batch operations and automation
  • Extended post-launch support

All prices in AUD. Final price depends on system complexity, data volume, and portal requirements. Book a free technical audit for a fixed-price quote.

Why Bocati Solutions

A Different Kind of Legacy Modernisation Company

Australian team, same timezone

No offshore relay. You speak directly with the engineer building your system, every conversation, every decision.

Fixed price, quoted upfront

No hourly billing surprises. The scope is locked before work starts and the price does not change unless you add to the scope.

Delivered in weeks, not months

AI-assisted development compresses timelines without cutting corners. Most projects that take traditional agencies 6–12 months are delivered in 6–12 weeks.

Zero data loss, guaranteed

We have migrated over a million rows from a 16-year-old legacy system without losing a single record. Data integrity is non-negotiable.

You own everything

100% of the source code, database schemas, and IP are yours at handover. No vendor lock-in. No ongoing licensing fees.

Real case study, verifiable results

Not a theoretical capability: a live project with a named client, real metrics, and a public case study you can read in full.

Frequently Asked Questions

How long does legacy system modernisation take?

Most projects are delivered in 6–12 weeks. Simple Classic ASP replacements with a single portal typically take 6–8 weeks. Multi-portal platforms with large data migrations run 10–16 weeks. We quote a fixed timeline before any work begins.

How much does it cost to replace a legacy system in Australia?

Typically between $25,000 and $120,000+ AUD, depending on system complexity, data volume, and the number of portals required. A free technical audit produces a fixed-price quote within a few days.

Will my data be safe during the migration?

Yes. The new system is built and tested while the old one stays live. Data is migrated with multiple validation passes; we do not cut over until record counts match and spot checks pass.

Can you replace a Classic ASP or Microsoft Access system?

Yes, this is our primary speciality. We have replaced a 16-year-old Classic ASP + Microsoft Access system for an Australian business, migrating over a million rows with zero data loss.

Do I need to take the business offline during migration?

No. The new system is built in parallel. The cutover is planned for a low-traffic window and typically takes less than an hour.

Who owns the code after the project?

You do, 100%. All code, database schemas, and IP are yours at handover. No licensing fees, no lock-in, no ongoing dependency on Bocati.

Running a System You're Afraid to Touch?

If the answer to “what happens if it goes down?” is “the business stops”, it's time to fix that. Start with a free technical audit. We'll map the system, assess the risks, and give you a clear picture of what a replacement would involve.

Get started

Let's build something.

Tell us what you need. We will come back with a clear scope, timeline, and fixed price, usually within 48 hours.

  • Free initial consultation, no obligation
  • Fixed-price quote, no hourly surprises
  • You own 100% of the code at handover

No spam. No obligation. Just a straight answer.