Heise's Plumbing executed a complete 200-Amp main electrical panel upgrade for a single-family home in the Baywood neighborhood of San Mateo, CA. The existing 100-Amp fuse panel was overloaded, experiencing frequent breaker trips upon running central HVAC and home EV chargers. Our licensed electric team removed the outdated panel, installed a modern Square D 200-Amp breaker panel with whole-house surge protection, updated grounding electrodes, and coordinated PG&E service hookup approval. The entire electrical system was load tested, labeled, and verified for safe, code-compliant operation.
The Problem
Outdated 100-Amp electrical panel tripping breakers under modern household appliances and EV charging loads.
Our Solution
Upgraded main panel to 200-Amp Square D breaker panel with new weatherhead, grounding rod, and surge protection.