Panel Upgrades
100A to 400A
A modern electrical panel is the foundation of a safe, reliable home or business. Whether you are adding an EV charger, building a home addition, or replacing an aging fuse box, Mission Electric handles the entire upgrade, permit, installation, and inspection. So your property is safe, up to code, and ready for whatever you plug in next.
Why Upgrade Your Panel
EV Charger Ready
A 200A or 400A panel provides the dedicated circuit capacity required for Level 2 EV charging, whether for a single Tesla Wall Connector or a multi‑vehicle setup.
Home Additions & Renovations
Adding square footage, a home office, or a finished basement usually requires more circuits than an older panel can safely support.
Safety & Code Compliance
Outdated panels, especially Federal Pacific or Zinsco models, are known fire hazards. We replace them with modern, code‑compliant equipment that passes inspection the first time.
Generator & Powerwall Integration
A proper panel upgrade is the first step in installing a whole‑home Generac generator or Tesla Powerwall backup system. We size the panel to accommodate your long‑term backup power plans.
What to Expect
On‑Site Assessment We inspect your current panel, calculate your load requirements, and recommend the right amperage for your home or business.
Permit & Utility Coordination We pull all required permits and coordinate with Eversource or your local utility for the service disconnect and reconnect.
Professional Installation Our licensed team replaces the panel, meters, and service entrance as needed, keeping your downtime to a minimum.
Inspection & Sign‑Off We schedule the municipal inspection and stay on site until the job is signed off and your power is back on.
Residential & Commercial
We upgrade panels in single‑family homes, multi‑family properties, and commercial buildings throughout Hartford County and Tolland County. From a straightforward 100A‑to‑200A swap to a 400A commercial service with CT metering, our team has the experience and licensing to handle any scope.
Need an EV charger at the same time? See our EV charger installation page. We can bundle the panel upgrade and charger install into a single project, saving you time and permitting fees.
Ready to upgrade your panel?
Book Now