Panel upgrades

A panel upgrade is the job we do most, and the one with the most moving parts: the Sunnyvale permit, the PG&E service appointment, the meter, the grounding, the inspection. We run all of it. You pick the day.

When a panel needs replacing

• Zinsco or Federal Pacific breakers that may not trip under fault. Insurers in Santa Clara County increasingly ask about them.
• 100 A service and a plan for an EV charger, a heat pump or an induction range. Any two of those usually tip the load calculation.
• No spare spaces, tandem breakers everywhere, or a sub-panel feeding a sub-panel.
• Scorching, buzzing, warm breakers, or lights that dim when the dryer starts.

What we install

A 200 A main breaker panel with 40 spaces, copper bus, a whole-house surge protector and a grounding electrode system brought to current code. Where you plan solar or a battery, a smart panel with per-circuit monitoring so the house sheds load instead of tripping. Where 200 A is not enough, a 225 A service with a load calculation filed with the application.

The day of

PG&E pulls the meter around eight. We swap the panel, re-land every circuit, label every breaker by room, and the inspector signs off in the afternoon. Power is back before dinner. Refrigerators are fine; we tell you the night before what to unplug.