Perth business owners often use these terms interchangeably, but they describe two genuinely different ways of buying IT services, with different pricing models, different response patterns, and very different responsibilities when something goes wrong. This guide explains service scope and ownership so you can choose the arrangement that fits your business.
Ad-Hoc IT Support
You request help for a specific issue and pay for the agreed work. Ask for the rate, call-out costs, and any after-hours charges before authorising it.
- →Pay per incident or hour
- →Reactive - you report the problem
- →No ongoing monitoring
- →Variable monthly costs
- →Best for: very small businesses with minimal IT
Managed IT Services
An ongoing agreement assigns responsibility for support and maintenance. Monitoring, patching, security, backup, and strategic advice depend on the written scope.
- Fixed monthly cost
- Proactive - we spot issues before you do
- 24/7 monitoring included
- Predictable budget
- Best for: businesses that depend on IT to operate
The Key Difference: Reactive vs Proactive
With ad-hoc support, your IT provider only hears from you after something has already gone wrong. By then, you've usually already lost time, and possibly data. There's also no one watching your backups, patching your servers overnight, or noticing that a hard drive is throwing early warning errors before it fails completely.
With managed IT, monitoring agents installed on your servers, PCs, and network devices feed alerts to your provider continuously. A server running low on disk space, a failed backup job, a security patch that hasn't applied, or unusual login activity all get flagged and actioned, often before your staff notice anything different. The provider isn't waiting for the phone to ring.
Regular maintenance can reduce avoidable interruptions, but no support model prevents every failure. Agree preventative tasks and escalation responsibilities alongside reactive support.
What's Actually Included in a Managed IT Agreement
Managed IT agreements vary. Check how your proposal covers each of these responsibilities:
- Helpdesk scope, covered users and devices, on-site arrangements, and support hours
- 24/7 monitoring of servers, workstations, and network equipment with automated alerting
- Patch management for operating systems and common applications
- Backup monitoring, with regular test restores to confirm backups actually work
- Endpoint security (antivirus/EDR) deployment and monitoring across all devices
- A documented IT environment, so you're not locked into one provider's institutional knowledge
- IT planning and review frequency where included in the agreement
Ad-hoc support typically covers none of this. You're paying for a technician's time to resolve a specific issue when it's reported, not for ongoing oversight of your environment. That's not a criticism of ad-hoc providers, it's simply what the model is designed to deliver.
Choosing Who Owns Each Responsibility
Choose a support model by responsibility first: who watches device health, installs patches, checks backups, approves changes, and helps staff? Record what stays with your business and what the provider takes on.
For the financial comparison, use our break-fix versus managed IT cost guide. For available services, compare business IT support with ongoing managed IT.
Which is right for your Perth business?
Choose ad-hoc if…
- You have fewer than 5 staff
- IT issues are genuinely rare (less than once a month)
- You have someone tech-savvy in-house for day-to-day issues
- Your budget can't yet support a monthly commitment
Choose managed IT if…
- Your team relies on computers and internet to operate
- You've experienced downtime that cost you money
- You don't have IT expertise in-house
- You want predictable monthly IT costs
- You handle sensitive client data or have compliance requirements
A Hybrid Middle Ground
Some Perth businesses land on a middle path, co-managed IT, where an in-house IT person or part-time contractor handles day-to-day requests, while a managed provider supplies the monitoring, security tooling, and after-hours coverage that's hard to staff internally. This works well for businesses that have outgrown ad-hoc support but aren't ready to outsource IT entirely.
Frequently Asked Questions
How much does managed IT cost for a small Perth business?
Managed IT Support starts from $99 per user/month + GST. Managed IT & Security Complete starts from $199 per user/month + GST and upgrades basic endpoint protection to advanced security with managed detection and response, alongside Microsoft 365 cloud-data backup, security awareness training and phishing simulations, managed email signatures, and priority remote support within agreed response targets. Both cover one supported desktop or laptop per user. Support includes basic endpoint protection with next-generation antivirus. Endpoint backup is separately quoted for both plans.
Can I switch from ad-hoc support to managed IT later?
Yes. A transition starts with reviewing systems, access, documentation, security, and backups. Agree the onboarding tasks, costs, responsibilities, and timetable before work begins. Timing depends on the environment and required remediation.
Does managed IT include hardware and software costs?
Generally no - managed IT covers the service of monitoring, maintaining, and supporting your systems, not the underlying hardware or software licences themselves. Most providers will procure and manage hardware and licensing on your behalf as part of the service, but those costs are billed separately or passed through, not bundled into the flat monthly fee.
What happens if something breaks outside business hours under managed IT?
Support targets depend on business impact, agreed support hours, and your service agreement. Confirm how priorities are assigned, when the response clock runs, and how urgent incidents are escalated. Automated monitoring does not mean a staffed 24/7 helpdesk.
We provide both ad-hoc IT support and fully managed IT for Perth businesses - we'll help you pick the right fit.
Managed IT Services →Not sure which fits your business?
Our Perth team will assess your situation and recommend the right level of support - honestly. No upselling.
For related reading, see our guides to IT Support for Small Business in Perth and How Much Does Managed IT Cost in Perth?.