Electrical Panel Upgrades & Sub-Panel Installation

Q: What is the difference between a sub-panel and a main electrical panel?

A main electrical panel distributes power from the electrical service to the whole property. A sub-panel adds extra circuit capacity in a specific area such as a garage, basement, addition, workshop, EV charger area, or commercial space. Power Blitz can review whether a sub-panel is enough or whether the main service should be upgraded.

Q: When do I need a 60 amp, 100 amp, or 200 amp panel upgrade?

The right panel size depends on the current electrical service, planned loads, available panel space, and equipment being added. Common triggers include EV chargers, hot tubs, basement suites, major renovations, garage or workshop circuits, heat pumps, and commercial equipment. A licensed electrician should assess the load before selecting a 60 amp, 100 amp, or 200 amp solution.

Q: Can Power Blitz install a panel or sub-panel I found online?

In many cases yes, but the equipment must be suitable for the installation, compatible with the existing electrical system, and installed according to code. Power Blitz can assess panel specifications, breaker compatibility, service capacity, and installation requirements before work begins.

Power Blitz handles electrical panel upgrades, sub-panel installation, and 100A-to-200A service planning for homes and businesses across Toronto, North York, Barrie, Simcoe County, and the GTA. If you are adding an EV charger, generator, renovation, basement suite, workshop, hot tub, or other high-load equipment, our licensed electricians assess your existing panel, load requirements, ESA permit/inspection needs, and safest upgrade path before quoting the work.

Panel Upgrade Process, ESA Readiness & Timeline

A safe panel upgrade is planned before tools come out. Power Blitz reviews the existing panel, service size, planned equipment, and property needs before recommending a sub-panel, panel replacement, or full service upgrade.

Initial assessment — panel, service size, access, and planned loads.
Load review — confirm whether the current electrical system can support the new demand.
Recommendation and quote — explain whether a sub-panel, panel replacement, or 100A-to-200A service upgrade makes sense.
ESA / utility coordination — plan the required notification, inspection, and coordination path where needed.
Installation and closeout — complete, label, test, clean up, and close out the work according to the required process.

When You May Need a Panel Upgrade

You may need an electrical panel upgrade or sub-panel assessment when your current panel no longer supports the way your property is being used. A bigger panel is not automatically the right answer in every home — Power Blitz starts with the existing service, panel condition, planned loads, and code requirements before recommending the safest upgrade path.

Adding a Level 2 EV charger
Finishing a basement or building an addition
Adding a workshop, hot tub, pool, sauna, heat pump, or other high-load equipment
Preparing for a standby generator or transfer switch
Frequent breaker trips or a panel with no safe expansion room
Replacing an older fuse panel or outdated breaker equipment
Adding dedicated circuits for appliances, tools, or commercial equipment

100A vs 200A: What Changes?

Many older homes were built around lower electrical demand. A 100A service may still be workable for some households, but modern loads can change the calculation quickly — especially EV chargers, heat pumps, hot tubs, basement suites, workshops, and major renovations.

A 200A upgrade can create more capacity for high-load equipment and future circuits, but the right path depends on a load calculation and the condition of the existing electrical system. In some cases, a properly planned sub-panel is enough. In other cases, a main panel or service upgrade is the safer long-term solution.

What Affects Panel Upgrade Cost?

Panel upgrade pricing is confirmed after an assessment because the work can vary from one property to another. Main cost factors include current service size, overhead vs. underground service, panel and meter location, grounding and bonding requirements, number of circuits being moved or added, ESA notification or inspection requirements, utility coordination, and whether EV charger, generator, surge protection, or sub-panel work is included.

WHAT WE OFFER

Residential Panel Upgrades

Planning a renovation, EV charger, basement suite, hot tub, workshop, or new high-demand equipment? Power Blitz upgrades residential electrical panels and installs sub-panels so your home has safe, code-compliant capacity for today’s loads.

Panel, Sub-Panel & Service Upgrades

Power Blitz Electrical upgrades outdated fuse panels and breaker panels, including 60-amp and 100-amp services, 100A to 200A service upgrades, and dedicated sub-panel installations as part of our electrical services. We plan the work around Ontario Electrical Safety Code requirements, ESA permits/inspections, utility coordination where needed, and clean installation for residential, commercial, and light industrial properties across Toronto, North York, Barrie, Simcoe County, and the GTA.

Electrical panel upgrades from glass fuses to circuit breakers.
Service upgrades from 100-amp to 200-amp electrical systems.
Meter replacement and installation
Compliance with permits and inspections by the ESA (Electrical Safety Authority).
Outdated panel service upgrades

Meter, Stack & Capacity Upgrades

When a panel upgrade also requires a meter, stack, or service entrance change, our licensed electricians coordinate the electrical scope so the installation is safe, organized, and ready for inspection. We help property owners add capacity for renovations, tenant improvements, EV charging, HVAC equipment, and other growing electrical demands.

Breaker Panels, Brands & Sub-Panels

We install and upgrade modern breaker panels and sub-panels using code-compliant components from trusted manufacturers. Whether you need to replace an old fuse box, add a garage or basement sub-panel, or move from a smaller service to a larger 200-amp system, Power Blitz focuses on safe capacity, clear labeling, clean workmanship, and long-term reliability.

Recent Panel and Sub-Panel Work

Power Blitz handles panel and sub-panel upgrades for homes and small businesses across Toronto, North York, Barrie, Simcoe County, and the GTA. Common projects include 100A-to-200A service upgrades for EV charger readiness, sub-panel installations for basement renovations or workshops, fuse-panel modernization, and generator or transfer-switch capacity planning.

For each project, our electricians assess the existing electrical system, confirm capacity requirements, complete code-compliant installation work, and help prepare the upgrade for safe ongoing use.

PANEL UPGRADE QUESTIONS

Panel Upgrade & Sub-Panel Questions

What is the difference between a sub-panel and a main electrical panel?

A main electrical panel distributes power from your electrical service to the whole property. A sub-panel adds extra circuit capacity in a specific area, such as a garage, basement, addition, workshop, EV charger area, or commercial space. Power Blitz can review whether a sub-panel is enough or whether the main service should be upgraded.

When do I need a 60 amp, 100 amp, or 200 amp panel upgrade?

The right panel size depends on your current electrical service, planned loads, available panel space, and the equipment being added. Common triggers include EV chargers, hot tubs, basement suites, major renovations, garage or workshop circuits, heat pumps, and commercial equipment. A licensed electrician should assess the load before selecting a 60 amp, 100 amp, or 200 amp solution.

Can Power Blitz install a panel or sub-panel I found online?

In many cases, yes, but the equipment must be suitable for the installation, compatible with the existing electrical system, and installed according to code. Power Blitz can assess panel specifications, breaker compatibility, service capacity, and installation requirements before work begins.

Does a panel upgrade need ESA notification or inspection?

Panel upgrades, service upgrades, and sub-panel installations often require proper permitting, notification, and inspection steps. Power Blitz plans panel work with safety, code compliance, and ESA-ready documentation in mind so homeowners and businesses are not guessing through the process.

Is a panel upgrade required before installing an EV charger?

Not always. Some properties have enough electrical capacity for a Level 2 EV charger, while others need load management, a sub-panel, or a service upgrade. Power Blitz can assess the existing panel and recommend the safest path before charger installation.

Request a Panel Upgrade Quote

Schedule a Panel Assessment

Book an in-person consultation or video call through the Power Blitz contact page. We’ll review your existing panel, planned electrical loads, upgrade goals, and ESA requirements, then recommend the safest path for your property.

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