Panel upgrades are one of the most common renovation-triggered electrical projects in Ontario. Here’s a complete breakdown for 2026.
Signs you need an upgrade:
- Fuse panel (glass fuses) – must be replaced
- Fewer than 20 circuits in a 3+ bedroom home
- Planning EV charger (Level 2 requires 40-60A dedicated circuit)
- Installing heat pump, hot tub, or basement apartment
- Breakers tripping regularly
Service size guide:
- 100A: Marginal for modern loads. Struggles with EV + heat pump + modern kitchen simultaneously.
- 200A: Standard for all new construction and most upgrades. Handles typical modern loads comfortably.
- 400A: Large homes with multiple EVs, radiant heating, or detached garage subpanels.
GTA cost ranges (2026):
- 100A to 200A upgrade: $2,500-$4,500
- 200A service + new panel: $3,000-$5,500
- 400A service upgrade: $6,000-$10,000
- Subpanel (garage/basement apt): $1,200-$2,500
- Level 2 EV charger circuit: $800-$1,800
ESA process: All electrical work requires ESA permit + inspection. ESA certificate is checked by insurers and in real estate transactions.
Licensed electrician referrals at home.renovation.reviews