Commercial Electrical Services in North York & Toronto

City Brite Electric Inc is a licensed electrical contractor working in commercial properties across North York, Toronto and the wider GTA — offices, storefronts and retail units, warehouses, commercial units being fitted out for a new tenant, and multi-unit and property-managed buildings. That covers service calls and repairs, electrical troubleshooting, lighting, equipment and dedicated circuits, upgrades and new installations.

  • Licensed Electrical Contractor
  • Commercial and residential electrical work
  • ESA notification and inspection where required
  • Written scope or quote where appropriate
  • ECRA/ESA licence 7018249
Commercial electrical rough-in below a concrete slab: steel conduit runs feeding ganged metal device boxes mounted beside a painted structural beam, with ceiling grid hangers in place.

Commercial Electrical Services

Very few commercial jobs need everything on this list. Most are one line from it, or a handful that belong to the same piece of work. Broadly, it falls into three groups.

Service, repairs and troubleshooting

  • Commercial electrical troubleshooting and fault finding
  • Electrical repairs to existing installations
  • Circuit tracing and identification
  • Breakers that trip or will not hold
  • Dead receptacles, switches and circuits
  • Lighting repairs
  • Correcting electrical deficiencies

Circuits, equipment and capacity

  • New commercial circuits
  • Dedicated circuits for specific equipment
  • Equipment wiring and final connection
  • Receptacles, switches and device work
  • Load calculations where the project calls for one
  • Electrical service upgrades and panel-related work
  • EV charger circuit work where it forms part of the project

Projects, fit-outs and lighting

  • Tenant fit-out electrical
  • Office, storefront and retail electrical
  • Warehouse and commercial-unit electrical
  • Commercial renovation electrical
  • Lighting replacement, upgrades and LED retrofits
  • Fire alarm electrical work where it applies
  • Testing of the completed installation

Commercial Service Calls and Electrical Troubleshooting

City Brite is a service contractor as well as a project contractor. A good share of commercial electrical work is not a planned installation at all — it is something that has stopped working in a building that still has to operate.

What businesses call us about

  • A breaker that trips, or will not reset
  • Receptacles or circuits that have gone dead
  • Lighting that has failed, is flickering, or is partly out
  • Equipment losing power, or tripping the circuit it is on
  • Circuits carrying more load than they were installed for
  • Intermittent or unusual electrical faults
  • Electrical deficiencies raised in a report or by an inspector
  • Electrical problems uncovered during a renovation

Troubleshooting is its own discipline. A tripping breaker is a symptom, and the same symptom can come from a failed device, a damaged cable, a piece of equipment drawing more than it should, a shared neutral, moisture in an outdoor circuit, or a circuit that was marginal from the day it was installed. Finding which is the work.

That is why a fault has to be diagnosed before the repair can be scoped. We will explain what we find, what we would recommend, and what the options are — and we explain pricing before proceeding with additional work. What we will not do is put a final repair price on a fault nobody has looked at yet.

Commercial Renovations and Tenant Fit-Outs

On a fit-out, electrical is one of the trades that costs least to get right early and most to revisit late. Once the ceiling is closed and the finishes are in, adding a circuit or moving a receptacle means opening completed work again.

The useful moment to bring in an electrician is while the layout is still on paper — before the walls go up and while the space plan can still absorb a change. Decisions made then are cheap; the same decisions made after drywall are a second mobilisation.

We handle the electrical portion of the work. Other trades and the general contractor cover the rest of the build, and on most fit-outs the electrical scope has to be coordinated with them rather than run independently.

What the electrical scope has to account for

Not all of these apply to every space, but each of them is easier to settle before the work starts than after.

  • The lighting layout, and the switching and controls that go with it
  • Receptacle layouts against how the space will actually be used
  • Circuits for the equipment going in
  • Dedicated circuits where a piece of equipment requires one
  • Loads that are not in the plan yet, but are likely later
  • Available panel capacity and the spaces left in it
  • The capacity of the incoming electrical service
  • Emergency and life-safety systems where they apply to the space
  • Inspection stages, and where they sit in the build programme
  • Rough-in completed before the finishes close the space up

Spaces we work in

  • Offices and professional suites
  • Retail spaces and storefronts
  • Commercial units and plaza units
  • Warehouses and storage space
  • Tenant improvements in occupied buildings
  • Multi-unit and property-managed commercial buildings

Commercial Lighting

Lighting is the most visible electrical system in a commercial space and usually the first one anyone complains about. We repair and replace failed fixtures, upgrade existing lighting, and carry out LED retrofits where the existing fittings are at the end of their life or the space is being reworked.

What suits an office is not what suits a warehouse, and neither is what suits a retail floor. Mounting height, the way the space is used, the switching and controls already in place, and whether the ceiling is being opened up all change the answer — which is why a lighting upgrade is usually worth looking at in person rather than specifying from a fixture count.

Pot Lights & Lighting

Equipment, Dedicated Circuits and Electrical Capacity

Commercial spaces frequently need a circuit dedicated to one piece of equipment, so that it is not sharing capacity with anything else and so that a fault on it does not take out the rest of the room.

Which equipment needs that, and what the circuit has to be, is not a guess. The wiring method, the conductor and breaker size, and the protection required all follow the equipment specifications and the conditions in the space — so the nameplate data or the specification sheet is the starting point for anything being newly connected.

Adding equipment, lighting, tenant load or new circuits then raises the question one level up: whether the existing electrical system can carry the result. That means looking at the panel spaces available, the capacity of the panel itself, the capacity of the incoming service, and the load already connected to it.

Where the project calls for one, a load calculation is completed to establish what the existing service can carry and whether anything has to change. Sometimes there is capacity available and nothing needs to happen. Sometimes it means a sub-panel. Sometimes the incoming service itself is the constraint, and that becomes a different conversation.

Panel Upgrades & Fuse Box Replacement

ESA Notification and Inspection

Where the work requires it, we file the ESA notification and coordinate the inspection with the Electrical Safety Authority.

Not every job carries the same requirement — replacing a failed light fixture and wiring a tenant fit-out are not the same thing — and we will tell you which applies to your work rather than leaving you to establish it.

Where an inspection does apply, the record it produces has value past the day of the work. It is the documentation showing the installation was carried out by a licensed electrical contractor and inspected against the Ontario Electrical Safety Code, which is the sort of thing a landlord, an insurer or an incoming tenant asks for later.

How a Commercial Electrical Job Runs

  1. Review the issue or the proposed work

    We start with what you are dealing with or planning — the fault, the fit-out, the equipment going in, or the upgrade being considered.

  2. Assess the existing installation

    The existing electrical installation and the conditions in the space are looked at, rather than the work being quoted from a description over the phone.

  3. Determine the electrical requirements

    Circuits, equipment loads, device locations, lighting and any dedicated supplies are worked out against what the space has to do.

  4. Written scope or quote where appropriate

    Where the work is defined enough to scope in advance, you get it in writing: what is included, what is not, and what would be charged separately if the work uncovers it.

  5. Complete the electrical work

    The installation or repair is carried out, coordinated with the other trades and with how the space is being used where that applies.

  6. ESA notification and inspection where required

    We file the notification and coordinate the inspection, so the work is not closed up ahead of it.

  7. Test and clean up

    The completed installation is tested before it goes back into service, circuits affected by the work are identified and labelled as appropriate, and the work area is left clean.

How long the work takes depends on its scope, what access the space allows, how it has to be coordinated with other trades, and — where inspections apply — the inspection schedule. We would rather give you a realistic expectation than a convenient one, so we will not quote a fixed timeline before we know what is involved. On troubleshooting calls the order changes: the diagnosis comes first, and the repair scope follows from what it finds.

Defined Projects and Service Work

Commercial work splits into two kinds of job, and they are priced differently. It is worth being upfront about which one you are looking at.

Defined projects

A fit-out, a renovation, a set of new circuits, a lighting upgrade or a service upgrade can usually be scoped in advance. We look at the property, work out what is involved, and can provide a written scope or quote before the work begins.

Troubleshooting and service work

When a breaker keeps tripping or a circuit has gone dead, the fault has to be found before anyone can say what the repair involves. We explain what we find and what we would recommend, and we explain pricing before proceeding with additional work.

Plenty of commercial jobs begin as the second and turn into the first: a fault is traced, and what it exposes turns out to be a defined piece of work that can then be scoped properly.

What Affects the Cost of Commercial Electrical Work

We do not publish prices for this work. The distance between tracing a single fault and wiring a full tenant fit-out is too wide for a number on a page to mean anything useful. What we can do is be clear about what moves it.

Scope and complexity

  • The size and scope of the work
  • The number of circuits involved
  • How much troubleshooting time the fault takes to isolate
  • The quantity and type of lighting
  • The complexity of the renovation around the electrical work

Access and conditions

  • How accessible the ceilings, walls and service routes are
  • Working around finished or occupied space
  • Coordination with other trades on site
  • Corrective work discovered once the job is opened up

System and requirements

  • The requirements of the equipment being connected
  • Available panel capacity and the spaces left in it
  • The capacity of the incoming electrical service
  • ESA requirements where they apply
  • The materials and wiring methods the installation calls for

A phone call and photos can help us understand the work, but most commercial projects and many faults need an on-site assessment before the scope can be confirmed.

Commercial Electrical Services in North York

North York carries an unusually broad mix of commercial property for one part of the city. Office buildings and professional suites sit alongside retail plazas and standalone storefronts; there are warehouses and standalone commercial units, mixed-use buildings with commercial at grade and residential above, and a large amount of space held by property managers rather than by the businesses occupying it.

That mix is the reason we do not approach commercial work by area. A unit in a recently built plaza and a storefront in a building several decades older can have almost nothing in common electrically, and the same is true of two suites in one office building where the fit-outs happened twenty years apart. We work throughout North York — Willowdale, Don Mills, Downsview, York Mills and North York Centre among them — and the assessment is the same wherever the property is.

North York is part of the City of Toronto. Whether a job requires notification to the Electrical Safety Authority and an inspection depends on the electrical work being performed, not on the area it is in. We work with commercial customers across the rest of Toronto and the surrounding GTA as well.

See the full list of areas we serve

Business Owners, Property Managers and Commercial Tenants

Who is asking changes what matters about the job, so it helps to say up front which of these you are.

Business owners

You care about the space working. The relevant detail is usually how the business runs in it — what equipment is going in, which areas cannot be interrupted, and what the electrical has to support.

Property managers and landlords

The building, not the tenancy, is the unit of concern: deficiencies to clear, common areas, work handed over between tenancies, and a record of what was done. The exact arrangement depends on the property and the work.

Commercial tenants

A tenancy adds a layer — what falls to you and what falls to the landlord, what the lease permits, and what has to be approved before it starts. Worth raising when you first get in touch.

General contractors

On a fit-out or a renovation, the electrical scope has to fit the programme: rough-in before the space is closed, inspection stages in the right place, and final connections once the finishes are in.

The exact scope depends on the property and the project, and we would rather establish that on site than assume it.

Working with City Brite Electric

Commercial electrical work is largely judged after the fact — by whether it passed, whether it still works, and whether anyone can tell what was done. Here is what we hold ourselves to.

Licensed Electrical Contractor

The work is carried out by a licensed electrical contractor, in accordance with Ontario requirements and the Ontario Electrical Safety Code.

Commercial and residential capability

City Brite handles both commercial electrical work and residential wiring and rewiring.

Service work as well as projects

Commercial customers can come to us for a fault that needs finding, not only for a project that has already been defined.

ESA notification handled for you

Where the work requires it, we file the notification and coordinate the inspection. You are not left chasing paperwork or wondering whether it was done.

A written scope or quote where appropriate

Where the work can be scoped in advance, what is included and what is not is set out in writing before it starts. On service calls, we explain pricing before proceeding with additional work.

Labelled, tested and cleaned up

Circuits affected by the work are identified and labelled as appropriate, the installation is tested before it goes back into service, and the work area is left clean.

Frequently Asked Questions

Do you provide commercial electrical repairs and troubleshooting?

Yes. Alongside defined projects, City Brite takes commercial service calls — tripping breakers, dead circuits and receptacles, lighting failures, equipment losing power, and faults that have not been identified yet.

Troubleshooting is charged as diagnostic work because the repair cannot be scoped until the fault is found. Once we know what it is, we explain what we found, what we would recommend, and the pricing before proceeding with additional work.

Do you work on tenant fit-outs?

Yes, on the electrical portion of them: lighting, receptacle layouts, equipment and dedicated circuits, panel work where the fit-out needs it, and the rough-in and final connections either side of the finishes.

The rest of the build sits with the general contractor and the other trades. On most fit-outs the electrical scope has to be coordinated with their programme, particularly around closing up the ceiling and where the inspection stages fall.

Can you add a circuit for a new piece of equipment?

Usually. The two questions are whether the panel has a space for the new breaker, and whether the existing service has the capacity to carry the additional load.

The circuit itself is determined by the equipment — the nameplate data or specification sheet establishes the conductor and breaker size, the wiring method and any protection required. If you have that documentation to hand when you get in touch, it shortens the conversation considerably.

Can you tell us whether our panel has capacity for more load?

That is a normal part of the assessment. It involves the physical spaces left in the panel, the rating of the panel itself, the capacity of the incoming service, and how much load is already connected.

Where the project calls for one, a load calculation is completed to establish what the service can carry. If the panel is full but the service is adequate, a sub-panel is often the answer; if the service is the constraint, that becomes a service upgrade conversation.

Panel Upgrades & Fuse Box Replacement
Does commercial electrical work need an ESA inspection?

It depends on the work. New circuits, alterations to the existing installation, fit-out wiring and anything involving the panel or the service are the kinds of job that are notifiable. Replacing a failed fixture or a device on a like-for-like basis generally is not.

Where notification applies, we file it and coordinate the inspection with the Electrical Safety Authority as part of the job, and we will tell you at the outset whether your work falls into that category.

Can you work in an occupied commercial space?

Often, yes — a good deal of commercial work happens in buildings that are still trading or still occupied. It changes how the work is sequenced rather than whether it can be done.

What matters is knowing in advance which areas cannot be interrupted, what has to stay energised, and when access is possible. Tell us how the space is used when you get in touch and it gets built into the scope rather than discovered on the day.

Work outside normal business hours may be available depending on the project and scheduling requirements.

Do you provide fire alarm services for commercial properties?

City Brite provides fire alarm installation, inspection and verification where it applies. Commercial properties are where those requirements come up most often, and fire alarm work is frequently tied to a fit-out or a change of use rather than standing on its own.

It has its own page, because the requirements are separate from general electrical work.

Fire Alarm Services
Do you work with property managers and commercial landlords?

Yes. That includes electrical deficiencies raised in a report or by an inspector, common-area electrical work, work between tenancies, and repairs in units the manager is responsible for.

The arrangement depends on the property and the work rather than following a standard template, so the practical first step is telling us what the property is and what needs doing.

This page was last updated August 2026.

Request an Estimate for Commercial Electrical Work

Tell us about the property and what you are dealing with — a fault, a fit-out, equipment going in, or an upgrade you are considering — and we will get back to you about looking at it.

Service area
North York, Toronto and the surrounding GTA

Photos of the panel, the affected area, or the equipment being connected can be helpful where they can be taken safely, and equipment specification sheets are useful for anything new. Never remove a panel cover or enter an unsafe area to take a photo.

Preferred contact method

Commercial electrical work in North York or Toronto?

Whether it is a fault that needs finding or a fit-out that needs planning, the starting point is the same: a look at the property and at what the electrical has to do.