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Electrical Panel Upgrade in San Jose, CA
Serving Santa Clara & San Mateo Counties
A Panel Upgrade Sized for Your Bay Area Home
An electrical panel upgrade cost typically depends on your current panel size, the target amperage, and whether the project involves a subpanel or service entrance work. Ozone Service handles the full scope: load assessment, permit acquisition, city inspection, and all utility coordination. One licensed team, one contract, and one warranty covering everything from the breaker box to the final inspection sign-off.
Common triggers for a panel upgrade in Bay Area homes: adding an EV charger, heat pump, or solar; a home still on 100-amp service or a fuse box; or breakers that trip repeatedly under normal load.
What's Included in Every Electrical Panel Upgrade
Every panel upgrade we complete includes the following as standard scope – not as billable add-ons:
Load Assessment
Before we recommend a panel size, we calculate your home’s actual electrical load – current and projected. Upgrading to 200 amps when your planned EV charger and heat pump require 300 is a job done twice. We size the panel for where your home is going, not just where it is today.
Permit Acquisition
The California Electrical Code requires a permit and final inspection for every panel replacement. We pull all required permits through the City of San Jose or the relevant jurisdiction before work begins. No permits mean no legal installation and no protection if something fails later.
PG&E Coordination
Replacing or upgrading the service entrance requires coordination with PG&E for a temporary power shutoff. We handle that scheduling directly – you don’t need to manage a three-way conversation between yourself, the utility, and the electrician.
Full Installation by Licensed Electricians
All work is performed by Ozone’s in-house licensed electricians – no subcontractors. The crew that shows up for the estimate is the crew that does the work. Every connection is made to the California Electrical Code, and the installation is documented for the final city inspection.
City Inspection
Every panel upgrade we complete passes city inspection on the first attempt – 100% of the time. That’s not a marketing claim; it’s a record that depends on pulling proper permits, doing the work correctly, and not cutting corners on documentation.
1-Year Labor Warranty
Our labor is covered for 1 year, in writing. If anything fails within the warranty period – panel, breakers, connections – we fix it at no charge. No diagnostic fee, no labor bill.
Which Upgrade Is Right for Your Home?
Main Electrical Panel upgrade
$5,688+
before incentives
Best for: Homes adding an EV charger, heat pump, or solar; homes on 100-amp service or a fuse box
Complete panel replacement by licensed in-house electricians. Load assessment, permit acquisition, Utility Company Coordination, installation, and city inspection – all under one contract.
Subpanel Installation & Replacement
$1,998+
before incentives
Best for: Detached garage, ADU, workshop, or addition requiring dedicated circuits without a full service upgrade
Dedicated circuits where you need them – without replacing the main panel. Same licensed team, same warranty.
This Service May Cost Less Than You Think
Bay Area utility programs and state energy incentives may offset a significant portion of your cost. We check what applies to your home and handle all the paperwork – as part of your free estimate, at no charge.
From First Call to Final Inspection
Step 1
Free Estimate & Load Assessment
We visit your home, assess your current panel, and calculate your existing and projected electrical load, including any planned EV chargers, heat pumps, or solar equipment. You leave with a written scope and price. No charge, no obligation.
Step 2
Permit Acquisition
We pull all required permits through the City of San Jose or the relevant jurisdiction before any work begins. In California, panel replacement without a permit means no inspection, no warranty enforcement, and potential issues when you sell the home. We don’t skip this step.
Step 3
PG&E Coordination
Upgrading the service entrance requires a temporary utility shutoff. We coordinate directly with PG&E – scheduling the outage window, confirming the timeline, and handling all utility-side communication so you don’t have to.
Step 4
Installation
Most panel upgrades are completed in 4–8 hours. Projects that include subpanel installation, service entrance work, or new circuit runs may take longer – we give you a specific timeline during the estimate. All work is performed by our in-house licensed electricians.
Step 5
City Inspection & Sign-Off
City inspection is scheduled and completed before the job is closed out. We walk you through the installed panel, label every circuit, and confirm that all breakers are correctly sized for their circuits. Our inspection pass rate is 100%.
Why Bay Area Homeowners Choose Us for Electrical Panel Upgrades
Electrical and HVAC Under One Roof
Most electrical panel upgrades in the Bay Area happen because a homeowner is installing a heat pump or EV charger or preparing for solar. When two separate contractors handle the electrical work and the equipment installation, accountability disappears the moment something goes wrong and each contractor points to the other. Ozone carries both HVAC and electrical licenses.
100% Inspection Pass Rate
Every electrical panel upgrade we complete passes city inspection on the first attempt. That result comes from pulling proper permits, sizing equipment correctly, following California Electrical Code without shortcuts, and documenting the work accurately for the inspector. It's not a coincidence - it's the process.
No Subcontractors
When you book with Ozone, the crew that shows up is our crew - not a team assembled from a staffing platform. Our licensed electricians are employees, not subcontracted labor. That matters for accountability, consistency, and warranty enforcement.
Real Homes, Real Results
Our licensed electricians did all of the work shown here. It was all done with permission, inspected, and fully covered by a warranty.
What Our Customers Say
Commercial Electrical Panel Upgrades
We upgrade electrical service for commercial properties across the Bay Area – office buildings, retail spaces, multi-unit residential, and light industrial. Commercial panel work follows the same process: load assessment, correct amperage specification, permit acquisition, licensed installation, and city inspection.
For commercial properties with high-voltage or three-phase requirements, contact us directly to discuss scope, timeline, and the appropriate service configuration.
Frequently Asked Questions About Electrical Panel Upgrade
Do I need a permit to replace my electrical panel in California?
Yes, the California Electrical Code requires a permit and final inspection for every electrical panel replacement, regardless of amperage. A panel replaced without a permit is not legally installed: it creates problems when selling the property and voids most warranties. We pull all required permits before work begins and schedule the city inspection as part of the project.
How much does an electrical panel upgrade cost in San Jose?
The cost depends on your current panel size, target amperage, whether a subpanel is needed, and whether service entrance work is required. After any applicable PG&E rebates, most Bay Area homeowners pay significantly less than the sticker price. We give you a specific number – not a range – during the free estimate.
How long does a panel upgrade take?
The physical installation typically takes 4–8 hours. Projects that include service entrance replacement, subpanel installation, or new circuit runs may take longer. The full timeline, including permit processing and city inspection scheduling, is usually 3–7 business days from job start. We give you a specific schedule during the estimate.
Do I need a panel upgrade before installing an EV charger or heat pump?
Often yes. A Level 2 EV charger requires a dedicated 240V, 40–50 amp circuit. A heat pump draws significantly more power than the gas furnace it replaces. Many Bay Area homes on 100-amp service cannot support both without an upgrade. We assess your panel as part of the estimate for any EV charger or heat pump installation, and if an upgrade is needed, we handle it in-house under the same contract.
What is a subpanel, and do I need one?
A subpanel is a secondary electrical distribution board fed from your main panel. It’s the right solution when you need additional circuits in a location far from the main panel – a detached garage, ADU, workshop, or large addition – without replacing the entire service. Whether you need a subpanel or a full panel upgrade depends on your current amperage and where the new circuits need to go. We’ll tell you which approach makes sense during the estimate.
What brands of electrical panels do you install?
We work with Siemens, Square D (Schneider Electric), Eaton, and Leviton – these manufacturers have the strongest record for safety, parts availability, and code compliance in California. We do not install Federal Pacific Stab-Lok or Zinsco panels, which have documented safety issues. If your home currently has one of these panels, replacement is not optional – it’s a safety issue.
What warranty do you provide on electrical panel upgrades?
We provide a 1-year labor warranty on electrical work, and equipment carries the manufacturer’s warranty. If anything fails within the warranty period – panel, breakers, connections – we diagnose and fix it at no charge. No service fee, no labor bill.
How do I know if my panel actually needs to be replaced?
The clearest signs: breakers that trip repeatedly on the same circuit under normal load; a home on 100-amp service planning to add an EV charger or heat pump; a fuse box rather than a circuit breaker panel; or lights that dim or flicker when large appliances start. If your panel is over 25 years old or is a Federal Pacific Stab-Lok or Zinsco brand, replacement is a safety issue – not just a capacity question. We assess your panel as part of every free estimate.
Get a Free Estimate for Electrical Panel Upgrade
No trip fee. No diagnostic charge. Written scope and price before any work begins.
- go@serviceozone.com
- Serving Bay Area, 24/7
Serving the Greater Bay Area
* and other cities across Santa Clara and San Mateo counties
