Slow response from your current provider
Tickets sit for days, voicemail goes unanswered and nobody owns the problem.

Markham · York Region
Proactive IT support, cybersecurity and Microsoft 365 management for Markham businesses, from a local team that answers the phone and is onsite in under 2 hours.
Markham office: 220 Royal Crest Court, Suite 19, Markham, Ontario L3R 9Y2
By the numbers
The day-to-day reality of working with our team — measured, not promised.
The usual story
Most Markham businesses that call us are not looking for more technology. They are looking for someone who picks up the phone and finishes the job.
Tickets sit for days, voicemail goes unanswered and nobody owns the problem.
The same laptop, the same printer, the same login issue, month after month.
You are not sure who would answer if an invoice email turned out to be fake.
Surprise invoices every time something breaks, with no way to budget for it.
What we do
One provider for support, security, Microsoft 365 and the network — not four vendors who each blame the other.
Servers, workstations and network devices are watched around the clock. Alerts reach an engineer before your staff notice a slowdown.
Learn moreA Markham-based help desk your team can call, email or message. Every ticket is owned until it is closed, not reassigned.
Learn moreEndpoint detection, email filtering and managed detection and response for Markham businesses. Threats are contained before they spread across the network.
Learn moreTenant setup, licensing, Teams and SharePoint administered properly. Conditional access and mail security configured the way Microsoft intends.
Learn moreDaily backups kept offsite and immutable, so ransomware cannot encrypt the copies. Restores are tested, not just logged.
Learn moreManaged firewalls, switches and Wi-Fi across your Markham office. Firmware, rules and guest access maintained and documented.
Learn moreKeep your in-house IT person and add our escalation, security operations and project capacity. They keep ownership; we add depth.
Learn moreAn engineer at your door when remote tools are not enough. Onsite support in Markham is included, not billed as a special trip.
Learn moreGetting started
Four steps, usually inside three weeks, with no downtime and no surprises for your staff.
We review devices, Microsoft 365, backups and security controls, then give you a written summary of what we found.
Admins, assets, vendors and network are documented. Monitoring and patching are deployed, and the biggest gaps are closed first.
Your help desk is live, alerts are being actioned and updates are applied after hours, with a record of what changed.
Every quarter we review incidents, aging hardware and licence renewals, and agree the next quarter's priorities and budget.
Why us
We have supported businesses across the GTA for years, from the same two offices, with the same engineers answering the phone.
220 Royal Crest Court, Suite 19. Engineers you can meet in person, not an offshore queue.
Markham, Unionville, Cornell and Milliken are minutes away, not a scheduled day trip.
No phone tree and no offshore queue — a person who already knows your environment picks up.
We fix the cause rather than the symptom, so the same issue does not come back next month.
Month to month. We keep clients by doing the work, not by enforcing a three-year term.
Your assets, accounts, vendors and passwords are written down and stored securely, not held in one engineer's head.
Free tool
Ten yes-or-no questions covering the controls that stop most incidents. You get a score, a risk level and the three things we would fix first — before anyone asks for your email.
Question 1 of 10
No email needed until you ask for the results. Answers are never shared.
Pricing
Managed IT is priced per user, per month. The figure depends on how many users and devices you have, the level of security you need — monitoring, endpoint detection, compliance reporting — and how much onsite support your Markham office actually requires. Two businesses with the same headcount can sit on very different plans for those reasons.
We confirm a fixed monthly figure in writing after a free assessment, with the scope attached, and support is not metered per ticket on any plan.
Core support and protection for smaller Markham teams that mostly need things to keep working.
Our most common plan: full monitoring, security operations and onsite support.
For businesses whose clients, insurers or contracts demand proof of security.
Read the full breakdown: How Much Do Managed IT Services Cost in Markham? A Complete Pricing Guide
Read the guideSectors
Different sectors need different controls, different software and different hours. These are the environments we work in most.
Tax-season reliability, secure client files and a documented setup your insurer will accept.
Learn moreLarge CAD files, fast workstations and storage that does not slow a project down.
Learn moreShop-floor networks, shared devices and systems that cannot stop for an update at the wrong hour.
Site connectivity, mobile device management and job files available where the crew actually is.
Learn morePrivate, access-controlled records, secure email and backup that meets clinic obligations.
Confidential client work protected, with reliable remote access for staff and partners.
Clients
“The professionals at Sun IT Solutions are knowledgeable and experienced in the IT industry. We can always trust them to provide the most efficient solutions and highest quality products to resolve our technology problems.”
Mike Mintsopoulos
President, Truck Equipment & Service Co. Ltd
“We are extremely happy with the service we receive from the staff at Sun IT Solutions. They are quick to respond to any issues or questions we have and Lloyd always offers solutions so that the same problems don't arise again.”
Kevin Stanley
President, Skyreach Window Cleaning Inc.
Areas served
Our Markham office is at 220 Royal Crest Court, Suite 19, Markham, Ontario L3R 9Y2. Onsite IT support in Markham is included on our managed plans, and most surrounding communities are within a short drive.
Markham office
220 Royal Crest Court, Suite 19
Markham, Ontario L3R 9Y2
Communities we support
FAQ
If your question is not here, call 416-479-0505 and an engineer will answer it — including if the answer is that you do not need a managed plan yet.
Managed IT services are a monthly arrangement where a provider takes responsibility for your computers, network, Microsoft 365 and security instead of billing you by the hour when something breaks. Your systems are monitored, patched and backed up continuously, and your staff have a help desk to call when something is not working. For a Markham business that means a local team that can also attend onsite when remote support is not enough.
Further reading
The controls we check first in any Markham office, in plain language.
Read the guideMicrosoft 365Default settings leave gaps. Here is what to configure and why it matters.
Read the guidePricingWhat drives the per-user price, and how to compare two quotes fairly.
Read the guideContact
Tell us how many people you have and what keeps breaking. An engineer replies within one business day, and the assessment itself is free.
Markham office
Support hours: Monday to Friday, 8:30 AM – 5:30 PM ET. Monitoring and urgent alerts run 24/7.
Book a Free IT Assessment