What to Expect During an Electrical Panel Upgrade

Your electrical panel is the heart of your home's electrical system. As homes continue adding EV chargers, HVAC systems, modern appliances, home offices, and smart technology, many older electrical systems simply were not designed to handle today's power demands.


At Brock Electric, we help homeowners throughout Roseville, Rocklin, Lincoln, Granite Bay, and the Greater Sacramento area upgrade outdated electrical panels safely, professionally, and with minimal disruption to your home.


Whether you are replacing an aging panel, upgrading from 100 amp to 200 amp service, preparing for an EV charger installation, or addressing safety concerns with older equipment like Zinsco or Federal Pacific panels, our goal is simple:


Deliver safe, reliable, future-ready electrical service with clear communication every step of the way.

Office Hours:

Monday - Friday: 7am - 5pm

Saturday: By appointment

Sunday: By appointment

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Signs You May Need an Electrical Panel Upgrade


You may benefit from an electrical panel replacement or service upgrade if you are experiencing:


  • Frequent breaker trips
  • Flickering or dimming lights
  • Lack of available breaker space
  • Older fuse boxes or outdated panels
  • Burning smells or warm breakers
  • Remodeling or room additions
  • Installing an EV charger
  • Upgrading HVAC systems or appliances
  • Electrical system strain during high usage
  • Insurance concerns regarding older panels


Many homeowners throughout the Sacramento region are also proactively replacing older Zinsco electrical panels due to long-term reliability and safety concerns associated with aging components.

The Brock Electric Panel Upgrade Process

Step 1 — Evaluate Your Existing Electrical System


Every home is different. We begin by inspecting your current electrical panel, service capacity, grounding system, and overall electrical load.


We also discuss:


  • Future electrical needs
  • EV charger plans
  • Remodel projects
  • Appliance upgrades
  • Long-term reliability goals


Our goal is to recommend the right solution for your home — not simply the biggest upgrade possible.

Step 2 — Planning, Permits & Utility


Coordination

Electrical panel upgrades require careful planning and coordination.


Brock Electric handles:


  • Permit requirements
  • Utility coordination
  • Inspection scheduling
  • System planning
  • Material preparation
  • Upgrade logistics


We help homeowners understand the process ahead of time so there are no surprises during the project.

Step 3 — Safe Panel Replacement


On installation day, power will typically be shut off temporarily while the existing equipment is safely removed and the new panel is installed.


During this stage we:


  • Replace outdated equipment
  • Install new breakers and components
  • Upgrade grounding where required
  • Properly label circuits
  • Verify code compliance
  • Maintain a clean and organized work area


Safety, reliability, and workmanship remain our highest priorities throughout the project.

Step 4 — Testing & Inspection


Once installation is complete, we carefully test the system and coordinate final inspections where required.


This includes:


  • Circuit testing
  • Voltage verification
  • Breaker testing
  • System safety checks
  • Final walkthrough with the homeowner


We want homeowners to feel confident understanding their upgraded electrical system before the project is complete.

Step 5 — A Future-Ready Electrical System



A professionally upgraded electrical panel can help improve:


  • Overall electrical reliability
  • Home safety
  • Capacity for future expansion
  • EV charger readiness
  • Appliance performance
  • Modern electrical flexibility


Many homeowners also gain peace of mind knowing their home's electrical system is better prepared for future technology and energy demands.

Common Questions About Electrical Panel Upgrades

  • How long does an electrical panel upgrade take?

    Most residential panel upgrades are completed within one day, although larger projects or utility coordination can sometimes extend the timeline.

  • Will my power be shut off?

    Yes. Temporary power shutdown is typically required during the replacement process. We coordinate the work carefully to minimize downtime as much as possible.

  • Do I need permits for an electrical panel upgrade?

    In most cases, yes. Brock Electric handles the permitting and inspection process for you.

  • Can I upgrade from 100 amp to 200 amp service?

    Yes. Many homeowners upgrade to 200 amp service to support modern electrical usage, EV chargers, HVAC systems, workshops, or future home improvements.

  • Why are Zinsco panels often replaced?

    Many older Zinsco panels have developed a reputation for long-term reliability and safety concerns as components age. Homeowners often choose to proactively replace these systems for improved safety and insurance considerations.

  • Do I need a panel upgrade for an EV charger?

    Not always, but many homes require additional electrical capacity or dedicated circuits to safely support EV charger installation.