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St George · Computer support and services

Communications in St George & Sydney

Reliable Computers provides communications for small & medium businesses across Oatley, Oatley West, Mortdale, Penshurst, Hurstville, Hurstville Grove, from our Oatley base. Reliable business phones, internet and collaboration that just work. Established 2009. Rated 4.8★ from 235 Google reviews. Call 1800 753 991.

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Call now1800 753 991 DirectionsOatley 2223 HoursHours Rating4.8 ★ (235)
What we do

Communications

For small & medium businesses.

What’s included

  • VoIP / hosted phone systems
  • Business internet & failover
  • Microsoft Teams setup
  • Mobile & remote connectivity

Problems we solve

  • Dropped calls & poor internet
  • Disconnected tools
  • No remote-work setup

Brands & systems we support

  • Microsoft Teams
  • Microsoft 365
How it works

How we deliver

1
Assess needs
2
Plan & quote
3
Install & configure
4
Support
Pricing

Honest, up-front pricing

Tailored quote

Scoped to your team and sites — quoted up front.

Reviews & ratings

Loved by the local community

4.8
Based on 235 Google reviews
549
41
30
20
10
Star counts from the 50 reviews on this site
RL
Roy Logozzo
google

“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.”

Posted on Google · 2026-08-04
MH
Michelle Henderson
google

“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.”

Posted on Google · 2026-07-16
PJ
Patricia Jancovich
google

“Best money we ever spent!! Courteous, professional service. Very thorough and helpful. Highly recommend the team at “Reliable Computers”.”

Posted on Google · 2026-07-16
Submit a reviewRead all 235 on Google

Meet your team

Led by people, not a faceless help desk

RC
Reliable Computers
Communications lead · Microsoft specialists · with us since 2009
Areas we serve

Computer support and services near you

These are just some of the local suburbs we cover.

OatleyNSWOatley WestNSWMortdaleNSWPenshurstNSWHurstvilleNSWHurstville GroveNSWSouth HurstvilleNSWKogarahNSWCarltonNSWAllawahNSWBeverly HillsNSWPeakhurstNSWPeakhurst HeightsNSWLugarnoNSWRiverwoodNSWPadstowNSWBlakehurstNSWConnells PointNSWKyle BayNSWRockdaleNSWBexleyNSWKingsgroveNSWSans SouciNSWRamsgateNSWCronullaNSWKirraweeNSWJannaliNSWMirandaNSWTaren PointNSWCaringbahNSWKurnellNSWSydney NSWNSWGymea NSW 2227NSWSt GeorgeNSWOatley NSW 2223NSWAllawah NSW 2218NSWJannali NSW 2226NSWKareela NSW 2232NSWMiranda NSW 2228NSWCronulla NSW 2230NSWKirrawee NSW 2232NSWMortdale NSW 2223NSWGymea Bay NSW 2227NSWPeakhurst NSW 2210NSWHurstville NSW 2220NSWSutherland NSW 2232NSWGrays Point NSW 2232NSWHurstville Grove NSW 2220NSWSouth Hurstville NSW 2221NSWPeakhurst Heights NSW 2210NSWSutherland Shire CouncilNSWSydneyNSWGymeaNSWKareelaNSWGymea BayNSWSutherlandNSWGrays PointNSW

Categories

Computer support and servicesComputer repair serviceComputer consultantComputer networking centerData recovery serviceComputer security serviceWebsite designer

Popular searches

computer repairs Oatleycomputer repairs near memanaged IT support Sydneycomputer repairs St GeorgeMac repairs Oatleydata recovery Sydneyvirus removal near mebusiness IT support Oatley

Payment methods

CashVisaMastercardAmerican ExpressEFTPOSChequeBank transfer / direct deposit

Parking & access

  • Free street parking (Mulga Rd & side streets)
  • Free council parking near Oatley station
Why us

Why choose Reliable Computers

One local provider for phones, internet and IT

Local and on-site, not a national call centre
Up-front quote, not open-ended hourly billing
Award-winning, 2009-established team
FAQs

Questions, answered

The things locals ask us most.

What communications services do you offer?
Reliable Computers sets up and supports business phone systems for St George and Sydney businesses: VOIP/hosted phones, Microsoft Teams calling, number porting, call handling and the network and connectivity behind them. We’ve delivered business communications since 2009.
What is a VOIP phone system?
VOIP (Voice over IP) runs your business calls over the internet instead of traditional phone lines — lower line rental, easy to add or remove users, and you keep your numbers. Reliable Computers designs, installs and supports VOIP for Sydney businesses.
How much does a business VOIP system cost?
VOIP is typically billed per user or handset per month with low call rates — usually well below traditional PSTN/ISDN line rental. Reliable Computers scopes and quotes your system up front after looking at your call volumes and team size. Call 1800 753 991.
Can you set up Microsoft Teams as our phone system?
Yes. As a Microsoft 365 specialist, Reliable Computers configures Microsoft Teams calling so your team can make and take business calls from Teams on desktop and mobile — chat, meetings and calls on one platform.
Can we keep our existing phone numbers?
Yes. Number porting moves your existing business numbers across to the new VOIP or Teams system, so customers still reach you on the same number. Reliable Computers manages the porting to keep disruption to a minimum.
Can staff make business calls from home or mobile?
Yes. VOIP and Teams calling let staff make and receive calls from anywhere — desk phone, laptop or the mobile app — using your business number, which is ideal for hybrid and remote teams.
Is VOIP reliable for business calls?
With the right internet connection and configuration, yes — call quality is excellent and uptime is high. Reliable Computers makes sure your network and bandwidth are set up for clear, dependable calls, and can add failover so calls keep flowing if your internet drops.
Will my office network handle a phone system?
It needs to be set up correctly — voice traffic prioritised, enough bandwidth and a solid connection. Reliable Computers reviews and configures your network and business internet so your phones and cloud apps run smoothly together across Oatley, the St George area and Sydney.
Can you integrate our phones with our IT and Microsoft 365?
Yes. Because Reliable Computers can manage your whole IT environment, your phone system, Microsoft 365, email and devices all work together — one local team and one point of contact, with no finger-pointing between vendors.
Why choose Reliable Computers for business communications?
An award-winning MSP (CRN MSP of the Year 2024), established in 2009 and rated 4.8 stars from 232 Google reviews, Reliable Computers is a local St George team at 1/89 Mulga Road, Oatley NSW 2223 that sets up and supports your VOIP, Teams calling and connectivity with fixed, predictable pricing. Call 1800 753 991.
Call us · 1800 753 991
Business information

Reliable Computers | Managed it support Sydney | Computer repairs Sydney & St George

Computer support and servicesHours
4.8235 Google reviews →

Keep your team connected and your communications secure. Reliable Computers sets up and supports business email, Microsoft Teams, VOIP phone systems and fast, stable Wi-Fi for…

Address
1/89 Mulga Road, Oatley NSW 2223Get directions →
Plus Code & geo
239F+WV · -33.980181099999996, 151.07469Open map →
Hours
HoursSee all →
Payment options
Cash · Visa · Mastercard · American Express · EFTPOS +more
17+ years localFree street parking (Mulga Rd & side streets)

Get a free quote

Fast callback · no obligation
100% private. No pushy sales calls.• Avg. callback < 1 hr
4.8from 235+ Google reviews
“I have purchased computers from Reliable Computers for a second time and this time I also purchased a laptop. I have always found Rober…”
Roy Logozzo · google
“Can highly recommend Max from Reliable computers. He has assisted with both my home & work computer issues, and made the whole process se…”
Michelle Henderson · google
Hours, directions & map

Find us in Oatley

A short walk from transport, with parking nearby.

Opening hours

Hours
Monday8:30 am – 5:00 pm
Tuesday8:30 am – 5:00 pm
Wednesday8:30 am – 5:00 pm
Thursday8:30 am – 5:00 pm
FridayToday8:30 am – 5:00 pm
SaturdayClosed
SundayClosed

Status: Open today 8:30 am – 5:00 pm

Closed on public holidays.

Address

1/89 Mulga Road
Oatley NSW 2223

  • Status: Hours
  • Parking: Free street parking (Mulga Rd & side streets), Free council parking near Oatley station
  • Accepted: Cash, Visa, Mastercard, American Express, EFTPOS, Cheque, Bank transfer / direct deposit
Google Plus Code239F+WV Oatley NSW, Australia
Get directions to Oatley
View on Google Maps

Well connected by public transport, with parking close by.

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