Load calculation
A written load calculation of existing and planned appliances, so you know whether you need more capacity at all.
ELECTRICAL PANEL UPGRADE · SUNNYVALEElectrical Panel Upgrade
Electrical Panel Upgrade
in Sunnyvale, CA.
Panel full, outdated or holding back a heat pump or EV charger? HAXX upgrades and replaces electrical panels across Sunnyvale, permits and PG&E coordination included.
Serving Cherry Chase, Ortega Park, Lakewood Village, Ponderosa Park, Fairbrae and the Heritage District and the rest of Sunnyvale. 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Replacing outdated, full or recalled panels, including Zinsco and Federal Pacific.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.
SUNNYVALE DETAILSPanel upgrades in
Panel upgrades in
Sunnyvale homes.
Many Sunnyvale homes from the 1950s and 1960s still have 100-amp panels, and some have brands with known problems. Electrification often starts here.
01
Load calculation first
HAXX calculates the real load before recommending an upgrade. Many homes can add a heat pump or EV charger without one.
02
Older panels
Zinsco, Federal Pacific and worn split-bus panels are common in older Sunnyvale homes and are worth replacing.
03
SVCE help
SVCE offers rebates toward electrical work needed for heat pumps. Confirm current terms with SVCE.
What customers say
about HAXX.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
★★★★★
“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.”
★★★★★
“I told him that the lights in my living room had been flickering for a while and asked if he could take a quick look. Instead of brushing it off, he immediately went to the main panel, asked a few questions, and then checked my subpanel in the garage.”
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 Sunnyvale: questions, answered.
Do I need a permit for a panel upgrade in Sunnyvale?
Yes. HAXX applies through the City of Sunnyvale, coordinates the PG&E disconnect and reconnect, and meets the inspector.
How long is my power off?
Usually one working day for a panel replacement, depending 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.