Serving the GTA and Simcoe County

Fast, professional and competitively priced

Computer network repair and IT support for business.

Serving Simcoe County and Georgian Bay, from Barrie, Wasaga Beach, Collingwood, Orillia and Midland to the Greater Toronto Area. With 40 years of experience, we deliver fast, professional, competitively priced computer network repair and IT management for commercial clients across the region.

7,000+Workstations repaired
1M+ TBData recovered
30,000Monitors replaced
25 to 50%Typical IT cost reduction

Our services

Comprehensive IT solutions for every business.

From network repair to full scale IT management, we deliver fast and reliable solutions tailored to your business. With decades of experience, our team keeps your systems secure, stable and running smoothly.

Computer network solutions

Computer network solutions

Computer Network Solutions for the Greater Toronto Area Your network is critical to most business functions, so when it is slow or goes down completely, that's a big problem.

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Computer network setup

Computer network setup

Complete Network Setup For Your Business Take Your Computer Network Setup to the Next Level!.

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Computer network repair

Computer network repair

Computer Network Repair When You Need It A strong network serves as the backbone of almost any business, large or small.

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Computer network support

Computer network support

Your Computer Network Specialists Computer Doctors on Call Ltd.

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On site computer repair

On site computer repair

On-Site Computer Repair, Save Time and Money While Being Efficient When you have a computer network issue, it's typically a stressful situation.

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Remote technical support

Remote technical support

This type of remote network support can help to resolve various computer issues courtesy of a remote team of technical support experts.

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Remote network monitoring

Remote network monitoring

Do you need help monitoring your network?.

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Network security consulting

Network security consulting

Today, businesses face a new threat, one that impacts not just their reputation but intimately intrudes on the lives of their customers and employees, information theft.

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Virus removal and remediation

Virus removal and remediation

If you are suspicious your computer has a virus, time is of the essence.

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Spyware removal

Spyware removal

Spyware Removal Service for Business Spyware can pose a serious risk to any person using a computer.

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Data recovery

Data recovery

Professional Data Recovery Services for Ontario Businesses Your business relies on the integrity of your data.

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Network technicians

Network technicians

Your Fullscale Computer Network Team Have you considered hiring an in-house computer technician networking specialist, only to find out that you would be paying for needless downtime or for.

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Network administration

Network administration

The Link Between Your IT Backbone and Your Company Infrastructure Your network computer systems administrator is the link between your IT backbone and the people who rely on it.

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Networking service provider

Networking service provider

Partner With Us for Your Computer Network Needs Your company is only as successful, profitable and efficient as your network is.

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Why choose us

Decades of trusted IT expertise.

With nearly four decades of experience, we have built lasting partnerships with businesses across Ontario. Here is why clients choose Computer Doctors On Call.

Experience

We have offered computer network repair and IT support since 1986, close to the beginning of the industry itself. That is four decades of situations, and very few of them are new to us any more.

Skill

We solve the immediate problem, but the services are designed to reduce your overall IT budget, deliver solutions built around your needs rather than ours, and connect a wide range of hardware and software into a secure, stable network.

Cost savings

Budget is always a concern. Our network solutions have delivered significant savings for clients over the years, and it is not uncommon for us to reduce overall IT costs by 25 to 50 percent.

Guarantees

We get IT done fast and done right. As we say, band-aid solutions are not enough. If you are not happy with the result, we do what it takes to make it right.

The CDOC ambulance, liveried with the Computer Doctors On Call name and phone number

The CDOC ambulance.

Computer Doctors On Call has served Ontario businesses since 1986. Our technicians arrive on site with the parts needed to complete the repair.

Jentu certified

Jentu diskless network management.

CDOC is a certified Jentu implementer. On a Jentu environment, workstations boot a central image over the network with no local hard drive and return to a clean state on every restart. We recommend it where it suits the site.

Jentu diskless architecture

Schematic
How a Jentu diskless environment is put togetherWorkstations with no local hard drive boot a read only operating system image streamed from a central image server over the network. User documents are written separately to revisioned network attached storage.no local driveno local driveno local driveNetworkblock streamImage servergolden imagesread onlyStorageuser documentsrevisionedProcessing stays localBoot over EthernetOne image to patch
CDOC technician on site with a client

Our journey

From local IT help to trusted network experts

Since 1986, Computer Doctors On Call has grown from a small tech support service into a trusted name in network management and repair, serving businesses across Toronto, Vaughan, Mississauga and beyond.

Our mission

To provide fast, reliable and affordable network support that lets businesses operate without interruption, so every client gets the expertise of a full IT department without the overhead of one.

Our vision

To be recognised as Ontario’s most trusted partner for computer network repair and management, combining decades of experience, modern tools and customer first service.

Real support, real stories

Hundreds of satisfied customers.

For over 20 years, our clinic ran on custom servers by CDOC in one form or another. Since installation, the server has run flawlessly. Because the workstations do not require a hard drive, we have had no failures of our workstations, and no need to worry about viral attacks, hacking, drive crashes, operating system failures or weekly patching.
Dr. Michael HawkeSilent Partners Sleep Labs
It is our pleasure to recommend Abraham Megidish and Computer Doctors On Call Ltd. to anyone that requires outstanding service and extremely knowledgeable and personable personnel. We highly recommend them for not only their expertise, but their outstanding service and tremendous savings.
Arlene GreenbergShaarei Teffilah Congregation
Abraham came to our rescue when our business internet network failed our needs at a critical time. Not content with just getting us up and running again, he improved our existing system dramatically. Thanks to him we have avoided downtime and hours of hassle. My only regret is that we did not find him earlier.
Michael MaishThe Roost Wine Co.
The Roost Wine Co.InspireJentu certified

Service area

Serving Simcoe County, Georgian Bay and the GTA.

We provide computer network repair and IT support to businesses in Barrie, Wasaga Beach, Collingwood, Orillia, Midland and across the Greater Toronto Area.

AllistonMidlandOrilliaCollingwoodWasaga BeachBarrieTorontoNorth YorkVaughanMississauga

Get a free network quote

Speak with a network expert.

Do not let network issues slow down your business. Our certified experts are ready to help. Fill out the form and we will reply within a few hours.

Send a message

Fast reply

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Questions

Common questions

What is Jentu and how does diskless computing work?
Jentu is a server controlled diskless computing platform. Workstations and servers boot their operating system and applications from a central image streamed over the network instead of from a local hard drive. Processing still happens on the endpoint, so it is not virtual desktop infrastructure. CDOC is a certified Jentu implementer and designs, deploys and supports these environments.
Does removing the hard drive slow the computers down?
No. On a 1 Gigabit network a diskless endpoint performs in the range of a local SSD, and on a 10 Gigabit network it typically exceeds NVMe. Performance scales with the resources of the central server rather than with the age of the individual workstation.
What happens to malware on a diskless endpoint?
The operating system and application layers are read only. Any change made during a session, including malware, is discarded when the machine powers off, so the endpoint comes up clean on the next boot. Malware that cannot persist across a restart has a very limited window to do damage.
Where does user data live if there is no local drive?
User documents and profiles are written to revisioned network attached storage kept separate from the operating system image. Resetting or rebuilding the OS layer does not touch user data.
Do you work alongside an existing internal IT department?
Yes. Co-managed arrangements are common. CDOC supplies specialised technicians for storage, network, server and security work while the internal team keeps ownership of strategy and business systems.

Get your free network quote today

Do not let network issues slow down your business. Our certified experts are ready to help. Contact us and we will reply within a few hours.