Reliable Computers provides IT support built for Australian small businesses — managed IT, Microsoft 365, backup and cyber security aligned to the Australian Government's Essential Eight. We're a local team in Oatley (1/89 Mulga Road) looking after around 400 small-business clients across St George and southern Sydney, with fixed prices, no hourly meter, and technicians you'll know by name. Start with a free IT Health Check — call 1800 753 991.
For IT support for Australian small businesses — from a single office to around twenty staff. We look after trades, medical and dental practices, law firms, accountants and bookkeepers, retailers, cafés and hospitality, allied health and professional services across St George, the Sutherland Shire and southern Sydney..
Not sure where your IT stands? Start here — for free.
A fixed-price check of your whole tenant against the Essential Eight, with a written report ranking exactly what to fix first. Yours to keep.
For a fixed monthly fee per person, we monitor, patch, back up and support your systems — no hourly meter, no surprise invoice. You'll know your technician by name.
We move small teams off ageing servers, Google Workspace and personal Gmail — mail, files and calendars — with an after-hours cutover so nobody loses a working day. Fixed price, quoted first.
It keeps deleted items for about 30 days and protects its own infrastructure — not you. We back up Exchange, OneDrive, SharePoint and Teams well beyond that window, and restore a single email or a whole site. The cheapest insurance you'll buy.
Most attacks exploit basic gaps, and basic gaps are fixable. We work to the Essential Eight — MFA done properly, tested backups, trained staff. Start with an audit; you can't secure what you haven't measured.
Usually some of it is and some isn't — and the risky parts are the ones nobody's looked at. A free review of your systems, security, backups and Microsoft 365, with a written report on what to fix first. It's genuinely free and genuinely yours — no obligation, and you keep the report either way. Most businesses who read it end up asking us to fix something, which is the honest reason we offer it.
Starts with a free assessment
Fixed price after diagnosis, so a bad week doesn't become a bad invoice. The Health Check is free and the report is yours to keep, whether or not you engage us.
“I have purchased computers from Reliable Computers for a second time and this time I also purchased a laptop. I have always found Robert and his staff to be very helpful and professional.”
“Can highly recommend Max from Reliable computers. He has assisted with both my home & work computer issues, and made the whole process seamless. Will have no hesitation in using Reliable computers for any further computer issues.”
“Best money we ever spent!! Courteous, professional service. Very thorough and helpful. Highly recommend the team at “Reliable Computers”.”
These are just some of the local suburbs we cover.
Built for your size. Small enough that you'll know your technician by name and they'll know your setup without asking — not an enterprise shop scaling down.
The things locals ask us most.
Reliable Computers provides IT support built for Australian small businesses — managed IT, Microsoft 365, backup and cyber security aligned to the Australian Government's…
“I have purchased computers from Reliable Computers for a second time and this time I also purchased a laptop. I have always found Rober…”
“Can highly recommend Max from Reliable computers. He has assisted with both my home & work computer issues, and made the whole process se…”
A short walk from transport, with parking nearby.
Status: Open today 8:30 am – 5:00 pm
Closed on public holidays.
1/89 Mulga Road
Oatley NSW 2223
239F+WV Oatley NSW, AustraliaWell connected by public transport, with parking close by.