Load calculation
A written load calculation of existing and planned appliances, so you know whether you need more capacity at all.
ELECTRICAL PANEL UPGRADE · HERCULESElectrical Panel Upgrade
Electrical Panel Upgrade
in Hercules, CA.
Panel full, outdated or too small for a heat pump or EV charger? HAXX upgrades panels in Hercules, with the City permit and PG&E coordination.
Serving Victoria by the Bay, Village Park, Hercules by the Bay, Olympian Hills, Foxboro and the Waterfront and the rest of Hercules. Share your address to confirm availability.
4.8 rating · 515+ reviewsHVAC & electrical, one teamPermits handledCA Lic #1081990
Panel and service
upgrades.
Most panel projects start with a heat pump, EV charger, induction range or remodel. HAXX begins with your real electrical load and only upgrades what the numbers require.
Panel replacement
Replacing outdated, full or recalled panels, including Zinsco and Federal Pacific.
Service upgrade to 200 A
Coordinating the utility, meter and service equipment when the home needs more power from the street.
Subpanels
Adding a subpanel for a garage, ADU or new circuits when the main panel is out of space.
Load management
Smart panels and circuit-sharing devices that can avoid a service upgrade in some homes.
Permits and utility coordination
HAXX handles the permit, the inspection and the PG&E work order.
HERCULES DETAILSPanel upgrades in
Panel upgrades in
Hercules homes.
Hercules homes from the 1970s and 1980s were wired for gas heat, gas water heating and gas cooking. Adding a heat pump, EV charger and induction range can push those panels past their limit.
01
Load calculation
HAXX calculates the actual load first. Many homes can add one or two electric appliances without a service upgrade.
02
Older panel brands
If your home still has a Federal Pacific or Zinsco panel, replacement is usually the safer choice regardless of new loads.
03
PG&E coordination
PG&E owns the lines in Hercules. HAXX schedules the disconnect and reconnect around the City inspection.
What customers say
about HAXX.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
★★★★★
“Recently, my dishwasher stopped working, and they discovered it was actually an outlet issue. Not only did they diagnose it quickly, but they also fixed the outlet—saving me from calling an electrician. Reliable, professional, and skilled at handling both appliances and electrical issues.”
★★★★★
“I purchased a couple of ceiling fans and was reluctant due to how old my house was with old wiring so I wanted someone professional and trustworthy. They have been both!”
★★★★★
“Prompt and professional - they helped run a new thermostat wire through a wall and crawl space.”
A CLEAR NEXT STEPFrom your first question
From your first question
to a considered plan.
01
Share your starting point
Existing equipment, home layout and what you want to improve.
02
Review the property
Sizing, airflow, equipment placement and electrical needs.
03
Compare the scope
Options, exclusions, permit requirements and any eligible incentives.
04
Plan installation
Confirm equipment, scheduling and handover details with HAXX.
HAXX ON SITEReal work.
Real work.
Real homes and businesses.
A closer look at recent electrical work by HAXX.
THE PEOPLE BEHIND THE WORKHands-on work.
Hands-on work.
A real look inside.
On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projectsRecent Projects
Main Panel Installation
Main panel installation.
Main Panel Upgrade
Main panel upgrade.
Main Panel Replacement
Main panel replacement.
SPAN Smart Panel Installation
Span smart panel installation.
Subpanel Installation
Subpanel installation.
Subpanel and New Circuits
Subpanel and new circuits.
Zinsco Subpanel Replacement
Zinsco subpanel replacement.
Basement Subpanel and Circuits
Basement subpanel and circuits.
GOOD TO KNOW
Electrical Panel Upgrade in Hercules: questions, answered.
Do I need a permit to replace a panel in Hercules?
Yes. Electrical work requires a City of Hercules permit and inspection. HAXX applies, coordinates with PG&E and meets the inspector.
How long will the power be off?
Usually one working day for a panel swap. Service upgrades depend on PG&E scheduling.
Do I need 200 amps?
Not always. A load calculation shows whether your current service can carry the new appliances, sometimes with load management. HAXX recommends an upgrade only when the numbers require it.
How long does a panel upgrade take?
The panel swap itself is usually one day. Permits and utility scheduling for service upgrades can add several weeks, so plan early.
LET’S TALK ABOUT YOUR PROPERTYTell us what you need.
Tell us what you need.
We’ll start there.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.