Load calculation
A written load calculation of existing and planned appliances, so you know whether you need more capacity at all.
Adding a heat pump, EV charger or induction range in Yountville? HAXX runs a load calculation, then upgrades or replaces the panel with a town permit.
Serving Downtown Washington Street, the Yount Street blocks near Town Hall, the streets around Veterans Memorial Park and the north end of town and the rest of Yountville. Share your address to confirm availability.

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.
A written load calculation of existing and planned appliances, so you know whether you need more capacity at all.
Replacing outdated, full or recalled panels, including Zinsco and Federal Pacific.
Coordinating the utility, meter and service equipment when the home needs more power from the street.
Adding a subpanel for a garage, ADU or new circuits when the main panel is out of space.
Smart panels and circuit-sharing devices that can avoid a service upgrade in some homes.
HAXX handles the permit, the inspection and the PG&E work order.
Many Yountville homes have electrical service sized for gas heating and cooking. Electrifying adds load, and the panel decides how much fits.
It shows whether the existing service can carry new loads, or whether a larger panel or load management is the better fix.
PG&E delivers power in Yountville. HAXX coordinates the disconnect and reconnect for service changes.
Worn or outdated panels and breakers are checked and replaced where needed.
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.”
Existing equipment, home layout and what you want to improve.
Sizing, airflow, equipment placement and electrical needs.
Options, exclusions, permit requirements and any eligible incentives.
Confirm equipment, scheduling and handover details with HAXX.
A closer look at recent electrical work by HAXX.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projects
Main panel installation.

Main panel upgrade.

Main panel replacement.

Span smart panel installation.

Subpanel installation.

Subpanel and new circuits.

Zinsco subpanel replacement.

Basement subpanel and circuits.
Yes. Panel and service changes need a Town of Yountville electrical permit and inspection. HAXX prepares and submits it.
Not always. A load calculation answers it, and a smart panel or circuit sharing sometimes avoids a service upgrade.
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.
The panel swap itself is usually one day. Permits and utility scheduling for service upgrades can add several weeks, so plan early.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
