Microsoft 365 migration services planned around your business hours, with a clear checklist, minimal downtime, and 24/7 monitoring once you're live.
Every mailbox, file and calendar is migrated with verified integrity checks, so nothing gets lost or corrupted in transit.
Migrations are planned around your business hours, so staff experience as little disruption as possible during the switch.
Our managed IT support and 24/7 monitoring continue after migration, so any teething issues are caught and resolved quickly.
Whether you're moving from an on-premise Exchange server, another cloud email provider, or simply need to migrate to Microsoft 365 from an older or under-licensed tenant, the technical detail matters far more than most business owners expect. Mailbox migration, calendar syncing, distribution lists, shared mailboxes, mobile device configuration and email routing all need to be planned and tested properly — get any one of these wrong and staff lose access to email, calendars or files at exactly the wrong moment. It's the kind of disruption that's entirely avoidable with proper planning, yet remains one of the most common complaints we hear from businesses who previously attempted a migration themselves or hired a provider that treated the project as a simple copy-paste job rather than the careful, staged process it actually needs to be. Cloudswitched provides office 365 migration services UK SMEs can rely on to get this right the first time, with a documented checklist, a realistic timeline, and verification at every stage so nothing is lost in the process.
We handle Microsoft 365 migration for small business clients across the UK, remotely in most cases with on-site coverage available in London, and every migration is followed by ongoing managed IT support so your Microsoft 365 environment stays secure, backed up and properly configured long after go-live.
Businesses come to us at very different stages of readiness. Some know exactly why they need to migrate to Microsoft 365 — an ageing on-premise server nearing end of life, a merger requiring two email systems to be consolidated into one, or simple frustration with an existing cloud provider — while others just know their current setup feels increasingly unreliable and haven't yet worked out what "properly configured" should actually look like. Either starting point is fine. Our microsoft 365 migration services uk businesses use begin with a conversation about what's actually driving the need to move, not a generic sales pitch, so the plan we build genuinely fits your situation rather than a template. For businesses that have never gone through a proper cloud email migration before, we also explain what changes day-to-day for staff — how sign-in works, where files now live, and what to do if something looks unfamiliar in the first week — so the technical migration doesn't create a separate wave of confused support tickets once everyone's actually using the new system.
A successful migration to Microsoft 365 starts well before any data actually moves. We begin with a full audit of your current environment — mailbox sizes, distribution lists, shared mailboxes, calendar permissions, mobile device management needs and any line-of-business applications that integrate with email or files — so nothing gets overlooked during planning. We then agree a migration window with you, typically outside peak business hours or over a weekend for larger tenants, and communicate clearly with your staff about what to expect and when, so nobody is caught off guard by a login prompt or a missing folder on Monday morning.
Our approach follows a structured checklist covering domain verification, DNS record changes, mailbox and data migration, calendar and contact syncing, mobile device re-enrolment, and a verification pass confirming every mailbox and file has moved correctly before the old system is switched off.
The final cutover — when email routing switches to the new tenant — is the moment most likely to cause disruption if it's not planned carefully. We stage this to minimise the window where mail could be delayed or misrouted, and monitor closely in the hours immediately after switch-over.
Part of a good microsoft 365 deployment uk businesses can rely on is choosing the right licence tier for each user — not every employee needs the same bundle of apps and storage, and getting this wrong either under-provisions staff who need more, or wastes budget on licences nobody uses. We review your actual usage patterns and recommend a licensing mix that fits, rather than defaulting to whatever tier is easiest to sell.
From audit to a verified, fully working Microsoft 365 environment — our process keeps disruption to a minimum.
We audit your current environment and agree a migration plan, timeline and checklist tailored to your business, including a realistic microsoft 365 migration cost.
We configure your new Microsoft 365 tenant, domains, security policies and licensing ahead of the actual data move.
We migrate mailboxes, files and calendars, verifying data integrity at every stage before switching over email routing.
We monitor closely after cutover and provide ongoing managed IT support to keep your Microsoft 365 environment secure and backed up.
You work with a named migration consultant uk businesses can call directly throughout the project, not a rotating queue of unfamiliar engineers.
Every mailbox and file is checked against the source system after migration, so "it should have worked" is replaced with proof that it did.
We follow a documented migration checklist for every project, so nothing is left to memory or improvisation on the day.
Every mailbox, file and calendar is verified against the source system after migration — we confirm it worked, we don't just assume it did.
Migrations are planned around your business hours, minimising disruption for staff and customers during the switch.
Our managed IT support continues after go-live, so your Microsoft 365 environment stays secure, backed up and properly licensed long-term.
You get a named migration consultant as your point of contact, not a rotating queue of unfamiliar engineers.
We also handle the details many DIY migrations miss — shared mailbox permissions, distribution list membership, mail flow rules and third-party integrations that connect to email or file storage — so nothing quietly breaks a week after everyone assumed the project was finished.
We move your business onto Microsoft 365 carefully, verifying every step. Here's what sets us apart.
Every mailbox and file is checked against the source system after migration, so you have proof the move worked rather than an assumption.
Migrations are scheduled around your business hours, not ours, to minimise disruption to staff and customers.
Every migration follows the same documented checklist, so quality doesn't depend on which engineer happens to be assigned.
Our managed IT support and 24/7 monitoring continue after migration, so your environment stays secure and backed up long-term.
You work with a named contact throughout, who understands your business rather than starting from scratch on every call.
Once you're on Microsoft 365, cloud backup is part of our managed plans as standard, protecting your data beyond Microsoft's own retention policies.
Whether you're migrating from on-premise Exchange, Google Workspace or another Microsoft 365 tenant, we've handled the specific quirks each source system brings.
We help you choose the right Microsoft 365 licence tier for your business, avoiding both under-licensing and paying for features you'll never use.
A clear migration quote agreed upfront, plus managed support from £20/user/month afterwards — no hidden costs.
A migration to Microsoft 365 is only the beginning — the environment needs proper security configuration, cloud backup, and ongoing monitoring to stay reliable and compliant. We build every migration into our wider managed IT support, so the same team that moved your business onto Microsoft 365 also keeps it running securely afterwards, with 24/7 monitoring, EDR endpoint protection and cloud backup included as part of our plans from £20/user/month. This matters more than it might seem: Microsoft's own retention and recovery tools have real limits, and relying on them alone as your only protection against accidental deletion or a ransomware incident leaves a gap that dedicated cloud backup closes properly.
A proper migration checklist covers: an audit of current mailboxes, shared mailboxes and distribution lists; licensing review and tenant setup; domain verification and DNS record planning; a staged data migration with integrity verification; mobile device and desktop app reconfiguration; a carefully timed email routing cutover; and a verification pass confirming every user can access everything they need before the old system is decommissioned. Skipping any one of these steps is usually where migrations go wrong — a distribution list quietly left behind, or a shared mailbox nobody remembered to include, can cause real disruption days after everyone assumed the project was finished. Testing with a small pilot group before migrating the whole business is also worth the extra day it takes, since it surfaces integration issues — a CRM plugin that expects a specific mailbox format, for instance — while the impact is still limited to a handful of users rather than the entire company.
Typical timeline: A straightforward migration for a small business is often completed within one to two weeks from kick-off to cutover, while larger or more complex environments with custom integrations can take four to six weeks to plan and execute properly.
Includes
A verified migration followed by ongoing managed IT support from £20/user/month, including cloud backup, monitoring and endpoint protection.
office 365 migration services uk
Zero data loss migration to Microsoft 365 for UK SMEs, with a documented checklist, verified data integrity and minimal downtime.
microsoft 365 migration london
Remote-first Microsoft 365 migration with on-site coverage available in London, backed by ongoing managed IT support.
Got questions? We've answered the most common ones below. If you need more detail, get in touch.
Cost depends on the number of mailboxes, data volume and complexity of your current environment, along with any custom integrations that need testing during the move. We provide a clear, fixed quote after an initial audit rather than an hourly estimate, and ongoing managed support afterwards starts from £20/user/month.
A straightforward small business migration typically takes one to two weeks from kick-off to cutover. Larger or more complex environments can take four to six weeks to plan and execute properly.
No — every mailbox and file is verified against the source system before the old environment is switched off, so we confirm nothing has been lost rather than assuming it hasn't.
Yes, we document the full migration checklist and timeline before starting, so you know exactly what's happening at every stage and can share it internally if needed, including with staff who simply want to know when to expect any changes to their own inbox.
Yes, growth often means new starters, extra shared mailboxes and heavier storage needs weren't properly accounted for originally. We review your current licensing and configuration as part of the audit and correct anything that no longer fits your business, including shared mailboxes and distribution lists that have accumulated inconsistently over time as the team expanded.
Yes, we handle migration from Google Workspace, on-premise Exchange servers, and other Microsoft 365 tenants, with the specific verification steps each source system requires.
Yes, ongoing managed IT support continues after go-live, covering security, backup, monitoring and general support — the migration is the start of the relationship, not the end of it.
Yes, we typically schedule the final cutover outside peak business hours or over a weekend for larger tenants, to minimise disruption to your staff and customers.
Microsoft's native retention tools have real limits and aren't designed as a full backup solution. We include dedicated cloud backup in our managed plans specifically to close that gap, protecting against accidental deletion, insider error and ransomware.
Limited time offer — valid until 31/05/2026
We believe that communication is key to any successful partnership. Submit your details and one of our friendly team members will be in touch with you shortly.
Submit your details and one of our friendly team members will be in touch with you shortly
Powered by industry-leading technologies including SolarWinds, Cloudflare, BitDefender, AWS, Microsoft Azure, and Cisco Meraki to deliver secure, scalable, and reliable IT solutions.
24 Aug, 2026
Almost every UK business runs on spreadsheets somewhere, and for most of them database reporting automation is the single change that would give the leadership...
23 Aug, 2026
AI code review has moved from novelty to default in UK development teams inside about eighteen months. Pull requests now arrive pre-annotated by a model,...
22 Aug, 2026
Google Ads wasted spend is the single most recoverable line item in most UK SME marketing budgets. It is not a strategy problem and it is rarely a creative...