Commercial Electrical Panel Upgrades in Toronto
Commercial panels that are full, failing, obsolete or overheating limit what a business can add and put the operation at risk. Portman replaces commercial panels, adds sub-panels for tenant spaces and equipment, and replaces old fuse equipment — with shutdowns planned around your hours.
- Business owners
- Landlords
- Property managers
- General contractors
Call Us If…
Real situations, not a capabilities list. If one of these sounds familiar, you're in the right place.
- 01There are no spaces left in the panel for the circuits you need.
- 02Breakers are hot, buzzing, discoloured or won't reset.
- 03An insurer or inspector flagged old fuse or obsolete equipment.
- 04A new tenant needs its own sub-panel.
- 05New equipment needs more capacity than the existing service provides.
When a Commercial Panel Needs Replacing
- No spare spaces, with tandem breakers or daisy-chained circuits
- Heat damage at breakers, bus connections or terminations
- Obsolete or unavailable breakers and fuse equipment
- Insurance or inspection deficiencies against the equipment
- New equipment loads beyond the existing panel rating
- Tenant separation requiring a dedicated sub-panel
Old Fuse Equipment in Older Toronto Buildings
Many older Toronto commercial buildings still carry original fuse equipment serving tenant spaces that have changed many times. On a St. Clair West job, Portman investigated original fuse panels in a commercial tenant space and replaced them with modern breaker distribution, adding new circuits for the tenant. That project is documented in our project gallery.
Commercial Service Upgrades
When the building's supply itself is the limit, a commercial service upgrade involves load calculation, utility coordination with Toronto Hydro and planned shutdowns. We assess existing capacity, explain the options — sometimes load management or redistribution is enough — and coordinate the upgrade when it is needed.
Shutdowns Planned Around Your Business
Panel replacement means a shutdown. We plan it with you: what will be off, for how long and when. Evening, overnight and weekend changeovers are possible where the business cannot close during the day.
Commercial Panel Replacement
- STEP 1
Site review of the panel, loads and available space.
- STEP 2
Load assessment and written quote with shutdown plan.
- STEP 3
ESA notification filed and utility coordinated where required.
- STEP 4
Planned shutdown, replacement and circuit reconnection.
- STEP 5
Testing, panel directory updated and inspection completed.
- STEP 6
Documentation and invoice to the right contact.
Safety first. If you see smoke or fire, or someone has been shocked, call 911 first. Do not open panels, reset repeatedly tripping breakers or work on live equipment yourself — keep people clear and call us. Urgent? Call 647-835-7757 or see commercial emergency service.
Planning Work? Send the Scope or Drawings.
Project address, schedule, tender deadline and any drawings or specifications. Incomplete packages are fine — we'll tell you what's missing.
Need a repair instead?
Book a service call for faults and failures — no drawings needed.
Frequently Asked Questions
Real Commercial Work
Read about documented jobs in our project gallery.
Related Commercial Services
Need commercial electrical service?
Call Portman Electric · 647-835-7757