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Managed IT and Microsoft 365

Managed IT Support vs Break-Fix Support: What Is the Difference?

Which model is better for a UK SME, and why the answer usually is not “whichever is cheaper this month”.

AAtom IP Editorial
Reviewed 13 June 2025 8 min read Reviewed by Atom IP

Break-fix is pay-per-incident. Managed IT is a monthly service designed to prevent incidents, monitor systems continuously, and respond quickly when something breaks. On the surface they look interchangeable. In practice, they behave very differently under stress.

How break-fix works

Something breaks, you call. An engineer bills for time and materials. When it is fixed, everyone moves on. No monthly fee, no ongoing monitoring, no proactive patching. Cheap in good months, expensive during outages.

How managed IT works

A monthly fee — usually per user or per device — covers a defined scope: monitoring, patching, endpoint security, backup, first-line and second-line support, and a defined response time. Incidents are handled inside the fee (with exclusions for major project work).

Where managed IT wins

  • Downtime has a real commercial cost — every hour lost is expensive.
  • You depend on Microsoft 365, cloud apps or bespoke line-of-business systems.
  • You want predictable monthly IT spend for budgeting.
  • You want proactive patching, security and monitoring rather than reactive firefighting.
  • You are subject to regulatory or insurance requirements (Cyber Essentials, ICO obligations).

Where break-fix can make sense

  • Micro business (1–5 people) with a very simple setup.
  • You have technical capability in-house for day-to-day issues.
  • IT is genuinely not business-critical (rare, in practice).

The hidden cost of break-fix

Break-fix engineers spend their time solving incidents that a managed provider would have prevented. Patches don’t get applied. Backups don’t get tested. Antivirus expires. When a major incident hits — ransomware, a laptop theft, a Microsoft outage — recovery takes days instead of hours.

What a good managed IT contract looks like

  • Clear scope of what is included and what is chargeable.
  • Defined response times by severity (P1/P2/P3).
  • Named engineers who know your environment.
  • Monthly service report — tickets closed, patches applied, backups tested.
  • Escalation path if things go wrong.

Atom IP’s managed IT service covers UK SMEs from a Southampton base. Ask for a plain-English service description before you switch.

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