Licensed Electricians for Homes and Businesses

Commercial Surge Protection Markham

Contact Electrical Services Ontario at (289) 672-2825 about Commercial Surge Protection in Markham and protect what cannot go down.

Get Your Quote for Commercial Surge Protection

Fill the form below to inquire about Electrical Services Ontario's Commercial Surge Protection in Markham.

Typical Commercial Surge Protection Issues We Correct

We've seen every way a power surge can hit a business. Here are the problems our clients call us about most often.

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Equipment Keeps Getting Damaged During Storms

Lightning-related surges travel through utility lines and hit a building's electrical system before anyone notices anything wrong until equipment fails. Repeated storm damage adds up fast in replacement costs and downtime. We install Type 1 protection at the service entrance to intercept these surges before they reach your panel.

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Servers or Network Equipment Failing Unexpectedly

Internal voltage spikes from equipment cycling on and off, not just storms, are a leading cause of sudden server and network failures in commercial buildings. A failed server room can halt operations for hours or days. We install Type 2 devices directly at the subpanel feeding sensitive IT infrastructure.

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Not Sure If the Building Has Surge Protection at All

Many commercial buildings, especially older ones, were never fitted with dedicated surge protection during original construction. This leaves the entire electrical system exposed to full, unmitigated voltage spikes. We inspect the panel and confirm exactly what protection, if any, currently exists.

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Point of Sale System Crashing During Power Fluctuations

POS terminals and card readers are sensitive to even brief voltage irregularities, and a crash mid-transaction can mean lost sales and frustrated customers. This usually points to an unprotected circuit feeding the checkout area. We add targeted surge protection at the panel serving point-of-sale equipment.

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HVAC or Refrigeration Controls Failing After Power Events

Control boards on commercial HVAC and refrigeration units are among the most expensive components to replace and among the most vulnerable to surge damage. A single failed compressor control can mean lost inventory in a refrigerated space. We protect these circuits at the subpanel level to prevent repeat failures.

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Surge Protection Device Shows a Fault Light

A status indicator showing a fault means the device has absorbed its rated capacity of surges and is no longer providing protection, even though it remains physically connected. Continuing to operate without replacement leaves the building fully exposed again. We test the unit and replace it promptly when it has reached end of life.

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Repeated Equipment Failures With No Clear Cause

A pattern of unrelated equipment failures across different systems in the same building often points to unmanaged internal surges rather than coincidence. Continuing to replace individual components costs more over time than addressing the root cause. We assess the full panel setup and recommend layered protection where it's actually needed.

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Considering Surge Protection for a New Commercial Build

New construction is the easiest and most cost-effective point to integrate surge protection, since it can be planned alongside the panel design from the start. Retrofitting later often costs more once walls and finishes are complete. We coordinate surge protection installation directly with panel work during construction.

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Worried About Downtime Cost From a Future Surge Event

Downtime from a single surge event, including lost productivity, damaged inventory, and equipment replacement, frequently costs several times more than a full protection system would have. Waiting until after a surge event to act means paying for both the damage and the fix. We size a system based on your building's actual risk and equipment value.

Reviews

What Our Customers Say

Facilities Manager Doug R.

Server room finally protected properly

We had two surge events in one year that took out network switches before calling Electrical Services Ontario. They installed Type 1 at the service entrance and Type 2 at the server room subpanel, and we haven't had a single issue since. Worth every dollar for the peace of mind alone.

Priya N.

Scheduled around our business hours

I was worried the install would shut down our storefront for a day but the electrician planned the panel work for early morning before we opened. Total downtime was under two hours and everything was back running by the time our first customers arrived.

Marcus T.

Good work, took longer due to our old panel

Our building has an older panel setup so the Electrical Services Ontario crew ran about ninety minutes past the original estimate once they saw what they were working with. The explanation made sense and the final result passed inspection without any problems.

Yolanda B.

Recommended exactly what we needed, nothing extra

I expected to be upsold on protection for panels we don't really need covered. Instead the technician walked our building with me and only recommended devices for the panels feeding our POS and kitchen equipment. Honest assessment and I appreciated that.

Gerald K.

Caught a failing device during a routine check

We had surge protection installed years ago by another company and Electrical Services Ontario found the status indicator showing a fault during an unrelated service call. Glad they mentioned it since we had no idea the unit had stopped protecting anything.

Renata S.

Explained Type 1 versus Type 2 clearly

I had no idea there were different levels of surge protection until the technician broke it down for our warehouse. He walked through why we needed both at the service entrance and at our equipment subpanel rather than just one or the other, and now it all makes sense.

How It Works

Your Electrical Work Done in 4 Simple Steps

Licensed electrician working on a residential service panel

Call or Request a Quote

Tell us what is happening — no power, a breaker that will not reset, or a planned upgrade. We talk it through and book a time that works for you, including same-day for urgent calls.

On-Site Assessment

A licensed electrician looks at the actual panel, circuit, and load rather than quoting over the phone, then gives you a firm written price with the scope set out line by line.

Licensed Installation or Repair

The electrician who quoted the job does the work. Drop sheets go down, permits are filed where the work calls for it, and you get an update before anything changes from the plan.

Tested, Inspected, Guaranteed

Every circuit is tested before we close the panel, the inspection is booked and the certificate handed over, and our labour is warrantied for two years.

Licensed, Insured, and Local

Electrical Work Done to Code the First Time

Panel upgrades, rewiring, EV chargers, generators, and emergency repairs, all handled by licensed electricians who find the real fault and leave the work inspected.

Contact Us

Ready When You Are

Reach out to Electrical Services Ontario for panel upgrades, rewiring, EV chargers, generators, or emergency electrical repairs across Markham.

Talk to a Licensed Electrician

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