Transformer & Subpanel Installation for Commercial Buildings & Facilities in the GTA
ESA Licensed • 500+ Reviews • Since 1972
Step-down, isolation and buck-boost transformers plus properly sized subpanels — engineered load calculations, grounding and bonding, and short-circuit coordination, installed with minimal disruption to your operation.
Services: Step-up/step-down transformers • 120/208V, 347/600V & K-rated units • Feeder sizing • Arc-flash coordination • New subpanels • Testing & commissioning
- ESA Licensed
- 500+ Five-Star Google Reviews
- 50+ Years in the GTA
- 99% First-Pass ESA Inspection
- Commercial Building Experience
- Load Study Before Every Install
- After-Hours & Weekend Shutdowns
Request Service or Assessment
Response Within 1 Hour. Premium Service.
The Three Questions Homeowners Ask Us Most
“We just need power added quickly — do we really need a full load study first?”
A quick load check takes very little time and prevents an undersized install that trips breakers or fails inspection. We build it into our quote process so it doesn't slow your timeline.
“Our facility can't afford extended downtime for this kind of work.”
We plan phased changeovers and can schedule the shutdown portion for evenings or weekends, energizing new equipment while keeping critical circuits live throughout.
“How do we know the new subpanel won't cause the same overload problems as before?”
We size every subpanel and transformer based on actual measured and projected loads, not assumptions, and include short-circuit coordination so protective devices work correctly together.
What You Actually Get When It's Done
Electrical Rooms Built to Last
Organized, labelled, and sized for your actual load.
Heavy-Duty Commercial Distribution
Switchgear and transformers installed to code with full coordination.
Subpanels Done Right
Properly sized, grounded, bonded, and clearly labelled.
⭐⭐⭐⭐⭐ Trusted by GTA facility managers and contractors with 500+ five-star Google reviews.
Reliable Power Distribution for Growing Commercial Operations
Adding equipment, expanding a tenant space, or feeding new machinery often means your existing distribution can't keep up. Undersized or improperly coordinated transformers and subpanels create nuisance trips, voltage problems, and safety risk.
Tron Electrical has designed and installed commercial transformer and subpanel systems across the GTA since 1972 — with proper load studies, ESA permits, and Hydro coordination handled from start to finish.
Engineered, not guessed. Every transformer and subpanel installation starts with a real load calculation and short-circuit/arc-flash review, so your system is sized correctly the first time.
Complete Transformer & Subpanel Installation Services
Step-Down & Step-Up Transformers
Dry-type transformers for 120/208V, 347/600V and specialty voltage conversions.
Isolation & Buck-Boost Transformers
Sensitive equipment protection and voltage correction for legacy or mismatched services.
K-Rated Transformers
Harmonic-rated transformers for facilities with non-linear loads like VFDs and IT equipment.
New Subpanel Installation
Right-sized distribution and tenant subpanels with proper feeder sizing and labelling.
Grounding & Bonding
Code-compliant grounding electrode systems and bonding for transformer secondaries.
Short-Circuit & Arc-Flash Coordination
Protective device coordination studies to keep your system safe and code-compliant.
Why GTA Facilities Choose Tron for Power Distribution
- ESA Licensed
- 500+ five-star Google reviews
- Serving Toronto & the GTA since 1972
- Real load studies before any installation
- ESA permits & Hydro coordination handled
- After-hours & weekend shutdowns available
- Short-circuit & arc-flash coordination included
- Testing, commissioning & full documentation
A Transformer & Subpanel Install From Load Study to Commissioning
- 1
Site walk & load calculation by a master electrician
- 2
Transformer and subpanel sizing with fixed-price proposal
- 3
ESA permits filed & Hydro/shutdown scheduled around operations
- 4
Installation, grounding, bonding & feeder termination
- 5
Testing, commissioning, ESA sign-off & as-built documentation
Built for Warehouses, Plazas, Institutions & Commercial Facilities
Whether you're feeding new production equipment in a Vaughan facility, adding tenant subpanels in a Scarborough plaza, or correcting voltage issues in an older Etobicoke building, Tron Electrical designs and installs distribution systems sized for your actual load — not guesswork.
Transformer & Subpanel Installs Across Toronto, Vaughan & the GTA
We install transformers and subpanels for commercial properties and facilities across Toronto, North York, Scarborough, Etobicoke, Vaughan, Mississauga, Oakville, Richmond Hill, Markham, Thornhill and surrounding GTA business districts.
Ready for Properly Sized Power Distribution?
Call Tron Electrical for a load study, transparent proposal, and ESA-permitted transformer or subpanel installation. We handle Hydro coordination, shutdown planning, and testing — your operation keeps running while we upgrade the distribution.
- ESA Licensed
- 500+ Five-Star Google Reviews
- 50+ Years in the GTA
- 99% First-Pass ESA Inspection
- Commercial Building Experience
- Load Study Before Every Install
- After-Hours & Weekend Shutdowns
Is your home ready? Get Gildo's electrical checklist
Five quick checks for your panel, your wiring and your EV plans — plus the seven questions to ask any electrician before you hire.
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