Case Study, Bromley BR1 Kent:
Seamless Cloud Migration for a Long-Standing Accountant Client in Bromley
For more than nine years, IT Support UK has proudly supported a well-established accountants firm based in Bromley. Over that time, technology has shifted dramatically, and so have the expectations placed on professional services firms. Our client approached us with a challenge that many modern businesses now face: could moving their systems and data to the cloud improve productivity, enhance security, and support overseas employees who needed secure and reliable access to their IT systems?
The client had grown steadily, and with expansion came new operational demands. They were onboarding staff overseas and wanted those employees to work securely and efficiently with the same systems used in the Bromley office. Their existing setup relied heavily on an on-premise server containing a large volume of historical and current data. Although the server had served them well for many years, it was becoming increasingly clear that the limitations of on-premise infrastructure would curb future growth, especially when remote and international access was required.
This prompted a strategic conversation: Was now the right time to move to the cloud? The client needed clarity about the benefits, risks, cost implications, and timeline. Our role was to provide an honest, practical assessment and guide them through the decision.
Understanding the Client’s Challenges
The firm’s concerns were valid and familiar:
- Large amounts of data stored in various folders and structures, some of which had grown disorganised over time.
- Difficulty providing secure remote access, especially to overseas employees, without exposing the network to unnecessary risk.
- Productivity limitations, including reliance on a single local server and inability to collaborate easily across offices and time zones.
- Hardware ageing, with the on-premise server approaching the end of its operational lifecycle.
- Growing cybersecurity expectations, especially within the financial sector where data protection requirements continue to tighten.
After reviewing these factors and outlining several cloud strategies, our accountant firm client agreed that a full migration to Microsoft 365, supported by SharePoint for data hosting and Azure Virtual Desktop (AVD) for remote staff would give them the performance, security, and long-term scalability they needed.
Planning a Cloud-First Strategy
A smooth and well-structured transition is critical for any cloud migration, especially for a busy accounting practice where data accuracy and uptime are non-negotiable.
Working closely with the client, we designed a phased plan that covered:
Re-organisation of all existing data
Before any migration could begin, the firm’s extensive data library had to be cleaned, structured, and optimised for SharePoint. Over nearly 20 years of operation, the server had accumulated a mixture of current files, archived materials, and legacy documents. We collaborated with the firm’s department heads to rebuild a clear, intuitive folder hierarchy tailored to how their team now works.
Migration of files to SharePoint
SharePoint was selected as the central hub for data storage and collaboration. Not only does it integrate seamlessly with Microsoft 365 applications, but it also provides version control, granular permissions, and anytime/anywhere access all essential for a company with expanding international operations.
Deployment of Azure Virtual Desktop for overseas employees
AVD was the ideal solution for giving overseas staff access to the firm’s systems without compromising security or compliance. It allowed us to create controlled virtual workspaces with specific access rights and restrictions. Each remote employee would be able to log in securely from abroad and work as though they were sitting at a desk in Bromley.
Security and compliance enhancements
Because of the nature of financial work, data security was a top priority. We upgraded all licensing to Microsoft 365 Business Premium, which enabled features such as:
- Conditional Access
- Intune device management
- Advanced Threat Protection
- Multifactor authentication
- Data Loss Prevention policies
These safeguards ensure that staff, no matter where they are based, access company information safely and in line with regulatory requirements.
Planning the migration window
To avoid any operational disruption, we scheduled the full file migration over a weekend. This decision allowed us to manage the workload, complete post-migration checks, and ensure that everything was ready for the team when they logged in Monday morning.
Flawless Execution: Zero Downtime, Maximum Impact
The migration weekend went exactly as planned. Our Orpington-based team worked diligently to transfer all data, test system performance, validate permissions, and confirm that SharePoint libraries were correctly structured and accessible.
By Monday morning:
- All employees could access the new SharePoint system without issue.
- Overseas staff successfully logged into Azure Virtual Desktop with the proper restrictions and security policies in place.
- There were no errors, no missing files, and no business interruption.
- The client experienced zero downtime, a key achievement for an accounting firm that relies heavily on continuous access to client data.
The feedback was immediate and extremely positive. The company noticed faster access to files, smoother collaboration, and more confidence in the reliability of their systems. Their overseas team could now work productively with full security compliance, and management gained peace of mind knowing their data was protected by Microsoft’s enterprise-grade cloud infrastructure.
Long-Term Benefits and Impact
Since the migration, the accountant firm has enjoyed several clear advantages:
- Increased productivity through easier file access and improved collaboration tools.
- Stronger security, reducing the risks associated with ageing on-premise hardware.
- Predictable costs, thanks to flexible Microsoft 365 licensing.
- A modern, scalable IT foundation capable of supporting future growth.
Most importantly, they now have a cloud-based environment that will continue to evolve with their business rather than hold it back.