Electrical Panel Upgrade in Markham
Check available electrical capacity before adding a charger at your Markham home. A full panel or 100-amp service does not automatically mean an upgrade; the contractor compares current limiting, approved load management and service work.
Older homes around Markham Village and Milliken sometimes run a 100A panel that is already close to full, leaving no room for a 40A or 48A charger circuit. In those cases your contractor should upgrade you to a 200A service so the charger has a safe, dedicated home without overloading the rest of the house.
Your contractor should coordinate the service upgrade with Alectra Utilities, pull the permit, and book the inspection. Ask whether the charger circuit and panel upgrade can be planned together, and confirm the contractor, utility coordination, scope and schedule with the provider.
The service change runs on a predictable rhythm. Alectra Utilities disconnects in the morning, the panel is changed by the electrical contractor and service equipment, and reconnection timing must be coordinated with the utility. The ESA inspection follows, and in most cases the charger circuit goes in during the same project so you are not coordinating two separate timelines.
It is worth saying plainly that plenty of Markham homes do not need this. Newer builds in Cornell, Berczy Village, and Angus Glen often have 200-amp panels with room to spare, and in those cases your contractor should quote the charger and nothing else. Where an upgrade is genuinely required, usually on the older streets around Markham Village and Milliken, you will see the load calculation behind the recommendation before you approve anything.
A timer or app schedule controls when charging starts. It is different from an approved EV energy management system that monitors household demand. A Licensed Electrical Contractor confirms capacity, any required monitoring equipment and the allowed charging current.
- Capacity check before an upgrade is recommended
- 100A to 200A service upgrades
- Coordinated with Alectra Utilities
- Discuss planning charger and panel work together
- licensed electrical contractors, permit included
- Frees up capacity for future loads too
Useful guides: Panel Upgrade for EV Charger Installation in Markham | EV Charger Installation Cost in Markham
Ready to start? Get A Free Quote through Markham EV Charger Pros. The service provider confirms availability, the contractor, written scope, pricing and any permit or inspection responsibilities before work is agreed.