Why Markham Homeowners Are Upgrading Their Electrical Panels
Most homes built in Markham before the early 2000s came equipped with 100-amp electrical panels. At the time, that was plenty. Today, it's often not enough.
Between air conditioning, home offices, electric vehicles, and modern kitchen appliances, electrical demand has increased significantly. If you're tripping breakers regularly, planning a renovation, or want to install a Level 2 EV charger, an electrical panel upgrade in Markham is likely on your radar.
This guide covers what's actually involved — the real costs, the permit process, and how to know if your home needs one.
Signs Your Panel Needs an Upgrade
Not every electrical issue means you need a new panel. But certain patterns are clear indicators.
Frequent breaker trips — If the same breaker keeps tripping, especially when running multiple appliances, your panel may be at capacity.
Fuse-based systems — Homes with fuse boxes instead of circuit breakers are running outdated technology. Insurance companies often flag these as a concern.
Burning smell or scorch marks — This is a safety issue. Stop using the panel and call a licensed electrician immediately.
Planning a major addition — Hot tubs, EV chargers, basement apartments, and workshop equipment all demand dedicated circuits. A 100-amp panel often can't accommodate them.
If you're considering an EV charger installation, the electrician will assess your panel capacity first. In many cases, upgrading the panel and installing the charger together makes the most sense.
What Does an Electrical Panel Upgrade Actually Involve?
An electrical panel upgrade replaces your existing panel with a higher-capacity unit — typically 200 amps for residential properties.
Here's what happens during a typical upgrade:
- Initial assessment — A licensed electrician inspects your current panel, wiring, and service entrance.
- Permit application — In Ontario, panel upgrades require an electrical permit through the Electrical Safety Authority (ESA).
- Utility coordination — Your local utility (Alectra in most of Markham) must disconnect and reconnect the service.
- Panel replacement — The old panel is removed, new panel installed, and circuits are reconnected.
- ESA inspection — An ESA inspector verifies the work meets Ontario Electrical Safety Code requirements.
The entire process typically takes one to two days of on-site work, though permit and utility scheduling can add time.
ESA Permits and Ontario Requirements
In Ontario, electrical panel upgrades are not DIY projects. The work must be done by a licensed electrical contractor, and an ESA permit is mandatory.
The permit ensures the work is inspected and meets code. Without it, you could face issues when selling your home or filing an insurance claim.
Permit fees vary based on the scope of work but typically range from $100 to $250 for a standard panel upgrade. Your electrician usually handles the permit application as part of the job.
Skipping the permit isn't worth the risk. Unpermitted electrical work can void your home insurance and create liability if something goes wrong.
Electrical Panel Upgrade Cost in Markham
Homeowners in Markham can expect to pay between $2,500 and $4,500 for a standard 200-amp panel upgrade. This range covers most single-family homes with straightforward installations.
Several factors affect the final price:
- Panel location — Panels in tight spaces or unfinished basements are easier to access than those behind drywall or in awkward corners.
- Service entrance condition — If the mast, meter base, or service wiring needs replacement, costs increase.
- Additional circuits — Adding circuits for EV chargers, sub-panels, or dedicated appliances adds to the total.
- Permit and inspection fees — These are typically included in contractor quotes but worth confirming.
For a detailed assessment specific to your home, check out our panel upgrade service page.
When to Combine a Panel Upgrade With EV Charger Installation
If you're buying an electric vehicle, installing a Level 2 charger at home is the most practical charging solution. Most Level 2 chargers require a 40-amp or 50-amp dedicated circuit.
On a 100-amp panel that's already near capacity, adding that load isn't always possible without an upgrade.
Combining the panel upgrade with your EV charger installation makes sense for a few reasons:
- One permit, one inspection — Less paperwork and fewer scheduling headaches.
- Single utility coordination — Alectra only needs to disconnect service once.
- Cost efficiency — Labour costs are lower when the electrician handles both jobs in one visit.
We handle both services regularly for Markham homeowners making the switch to electric vehicles.
Choosing a Contractor for Your Panel Upgrade
Electrical work isn't something to shop for based on the lowest price alone. A few things matter more than saving a couple hundred dollars.
Verify licensing — In Ontario, electrical contractors must hold a valid ECRA/ESA licence. Ask for the licence number and verify it on the ESA website.
Confirm permit handling — A reputable contractor pulls permits as standard practice. If someone offers to skip the permit to save money, walk away.
Get a written quote — The quote should detail the panel size, included work, permit fees, and any exclusions.
Ask about warranty — Most panels come with manufacturer warranties. Ask what the contractor covers for labour.
What Happens on Installation Day
Knowing what to expect makes the process easier.
Your power will be off for several hours — typically four to eight hours depending on complexity. Plan accordingly. Avoid scheduling on days when you're working from home with critical deadlines.
The electrician will coordinate with Alectra to disconnect your service in the morning. Once the new panel is installed and connected, they'll restore power.
After the work is complete, the ESA schedules an inspection — usually within a few business days. You'll receive a Certificate of Inspection once everything passes.
Ready to Upgrade Your Panel?
If you're experiencing electrical issues, planning a renovation, or preparing for an EV charger, an electrical panel upgrade in Markham is a practical investment in your home's safety and functionality.
We're a licensed GTA electrical contractor specialising in panel upgrades and EV charger installations. We handle permits, coordinate with Alectra, and make sure the work is done right.
Get a free quote at EVPowerUpgrade.ca or call (647) 694-6394.
We'll assess your current setup and give you a straight answer on what your home actually needs.