Load calculation
A written load calculation of existing and planned appliances, so you know whether you need more capacity at all.
Lafayette panel upgrades for heat pumps, EV chargers, induction and ADUs. HAXX runs the load calculation, handles the County permit and coordinates with PG&E.
Serving Burton Valley, Happy Valley, Reliez Valley, Trailside and Downtown Lafayette and the rest of Lafayette. 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Replacing outdated, full or recalled panels, including Zinsco and Federal Pacific.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 Lafayette homes were wired in the 1950s and 1960s for gas heat and few appliances. Remodels have since added more load than those panels were sized for.
HAXX totals existing and planned loads to see whether you need a new service or can keep the current one.
Load-managing devices can sometimes add a charger or heat pump without a larger PG&E service.
Electrical permits are issued by Contra Costa County for Lafayette. HAXX schedules the inspection and the PG&E disconnect and reconnect.
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.”
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.
A load calculation is the reliable test. Breakers that trip under normal use and no free spaces are common warning signs.
Contra Costa County's Building Inspection Department issues building and electrical permits for Lafayette. HAXX files the application.
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.
