Reviewed by Zvonko Lipovac, Master Electrician, Apollo Electric Inc. · ECRA/ESA 7009372 · Last updated: 9 September 2026

Commercial electrical services in Hamilton cover everything from a single failed circuit in a storefront to a full fit-out for a new tenant. The difference from residential work is not the wire, it is the stakes: a dead circuit at home is an inconvenience, while a dead circuit on a sales floor, a walk-in cooler or a production line costs money every hour it stays down.

Apollo Electric Inc. has handled commercial work across Hamilton, Burlington, Oakville and the surrounding area for over 30 years, as a licensed ACP electrical contractor under ECRA/ESA licence 7009372. This page sets out what we do, how we schedule around a working business, and how to judge any contractor for the job.

What Our Commercial Electrical Services Cover

These are the services we deliver to commercial and industrial clients, grouped by what the business actually needs.

The scope of our commercial electrical services is the same whether the building is a single unit on King Street or a warehouse in the east end. What changes is the planning around it.

Who Should You Call for Commercial Electrical Services in Hamilton?

A licensed electrical contractor with commercial experience, and with the paperwork to prove both. On commercial jobs these five checks matter more than on a house, because a landlord, an insurer and sometimes an auditor will all ask for the evidence.

The licence checks in full are set out in our guide to choosing a licensed electrician in Hamilton, and how licensing and inspection work in Ontario is on our electrical safety page.

Buildings We Work In

Commercial electrical services look different depending on the building, and the right contractor knows what each one demands.

• Retail and storefronts. Lighting that sells product, signage circuits, and work planned before opening or after close so the floor stays open.
• Offices. Tenant improvements, data cabling kept away from power runs, and circuits sized for the equipment actually on the desks.
• Restaurants and food service. Dedicated circuits for cooking lines, coolers and freezers, where a tripped breaker can mean spoiled stock by morning.
• Warehouses and light industrial. High-bay lighting, machine connections, three phase equipment and power quality problems that show up as unexplained equipment faults.
• Multi-unit residential buildings. Common area panels, suite work, code corrections and scheduled maintenance for property managers who need one contractor they can rely on.

Property management is a large share of our commercial work, and the review below is from one of those clients.

Working Around Your Business

The single biggest cost of commercial electrical services is often the downtime rather than the invoice. These are the ways we keep it down.

1. Evening and weekend scheduling for work that would otherwise close the floor.
2. Phased shutdowns, so one area is de-energised at a time rather than the whole building.
3. Temporary power for critical loads such as coolers, servers or security systems while their circuits are being worked on.
4. Advance notice to tenants, other trades and building management, arranged before the day rather than on it.
5. Utility coordination booked early for any service change, because a disconnect cannot be arranged at short notice.

How a Commercial Job Runs

The sequence below applies to any commercial electrical services job larger than a service call, and it is what keeps a job on budget.

1. Site visit. Panels, service, loads, access and the hours the space is in use.
2. Written scope and schedule. What is being done, when, which areas lose power and for how long.
3. ESA notification filed by the contractor. Where the electrical work sits inside a larger renovation, building permits are handled with the City of Hamilton alongside it.
4. The work, phased around your operation.
5. Testing of every circuit under load before handover, not just a switch-on.
6. Inspection and certificate, delivered with updated panel directories for your maintenance file.

Commercial Emergencies

When power fails on a working floor, the call is answered 24 hours a day at 905-921-5487. The first job on site is to make the building safe and restore power to what matters most, usually refrigeration, security, life safety systems and point of sale, before the permanent repair is planned. If the outage is on the utility side, you are told so plainly. The full guide to who to call at 2am, including the utility and 911, is on our emergency electrician in Hamilton page, and Burlington businesses have their own Burlington emergency page.

Common Problems Behind Commercial Service Calls

Most requests for commercial electrical services in Hamilton trace back to a short list of causes. Knowing them helps you describe the problem on the phone and helps us arrive with the right parts.

Every one of these is diagnosed before anything is replaced. Swapping breakers and devices until a symptom disappears is how a commercial electrical services bill doubles without the problem being fixed.

Planned Maintenance for Property Managers

Scheduled commercial electrical services cost less than emergency ones, and they are the easiest way to avoid a Friday night outage.

• Annual panel checks for heat, loose terminations and corrosion, especially in older buildings and wet basements.
• Directory audits, so every breaker is labelled correctly for the next person who has to isolate a circuit in a hurry.
• Emergency and exit lighting tests, since these are the circuits nobody notices until an inspection or a fire drill.
• Load reviews before new tenants move in, so a new tenant's equipment does not arrive to find a service that cannot carry it.
• One point of contact across a portfolio of buildings, with records kept for each one.

What Moves the Price

Commercial electrical services are priced from a site visit and a written scope. These are the drivers you should see in any honest quote.

Call 905-921-5487 or request a commercial estimate. For homes, see our residential services, and more client feedback is on our reviews page.

Frequently Asked Questions

Who should I call for commercial electrical services in Hamilton?

Call Apollo Electric at 905-921-5487. We are an ECRA/ESA licensed electrical contractor, licence 7009372, WSIB compliant, with over 30 years of commercial work across Hamilton, Burlington and Oakville. Work is scheduled around business hours, and the emergency line is answered 24 hours a day.

Can you work outside business hours?

Yes. Evening and weekend scheduling is available for work that would otherwise close a sales floor, an office or a kitchen. Phased shutdowns keep most of the building running while one area is worked on.

Do you work with property managers?

Yes. Property management clients make up a large share of our commercial work, including common area panels, suite repairs, code corrections and scheduled maintenance across multi-unit buildings.

Do commercial jobs need ESA inspection?

Notifiable electrical work does. The licensed contractor files the notification with the Electrical Safety Authority and the certificate follows the inspection. Where the work is part of a larger renovation, building permits are handled with the City of Hamilton as well.

Do you install EV charging stations for businesses?

Yes, for staff and customer parking. A load calculation comes first, because the existing service often decides how many chargers the site can support without an upgrade.

What areas do you serve for commercial work?

Hamilton, Dundas, Ancaster, Waterdown, Stoney Creek, Grimsby, Burlington, Oakville, Milton, Cambridge, Kitchener-Waterloo and the surrounding area, including the GTA.

References

• Electrical Safety Authority, Ontario's electrical safety regulator.
• ESA, finding the right contractor, on licensing and the Authorized Contractor Program.
• WSIB, on clearance certificates.
• ThreeBestRated, electricians in Hamilton.