Panel capacity check
A load check before the install tells you which charger size your service can carry.
Level 2 EV charger installation in St. Helena for Tesla, Rivian, Ford, Hyundai and other EVs, with a load calculation, permit and inspection.
Serving Downtown along Main Street, the Oak Avenue and Spring Street blocks, Railroad Avenue, Pope Street and the homes up Spring Mountain Road and the rest of St. Helena. Share your address to confirm availability.

Hardwired wall chargers and 240-volt outlets for Tesla, Rivian, Ford, Hyundai and other EVs. Every install starts with a check of your panel capacity.
A load check before the install tells you which charger size your service can carry.
Tesla, ChargePoint, Emporia, Wallbox and other Level 2 chargers, plus NEMA 14-50 outlets.
Circuit routing planned for a clean install, including trenching for detached garages when needed.
Power-sharing between two chargers so both cars charge without a service upgrade.
Chargers that throttle when the house is busy, which can avoid a panel upgrade.
HAXX pulls the electrical permit and meets the inspector.
Many St. Helena homes have detached garages or long driveways, so the circuit run is often the main design question.
HAXX checks panel capacity and sizes the circuit to code before installing a wall connector or 240-volt outlet.
Runs to a detached garage or outdoor pedestal may need trenching or a subpanel. HAXX plans the route.
MCE offers the free MCE Sync app, which schedules home charging for lower-cost hours, and an EV rate comparison tool.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“The technician from Haxx immediately pointed out multiple violations of the National Electrical Code and explained that the wiring was overheating and could potentially become a fire hazard. They offered to redo the installation the correct way, pulled the proper permit, and installed the EV charger safely and professionally. The city inspection passed without any issues.”
“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!”
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
Ev charger installation.

Tesla wall connector installation.

Emporia ev charger circuit.

Span drive ev charger installation.

Nema 14-50 outlet installation.

Main panel installation.

Main panel upgrade.

Main panel replacement.
Yes. A Level 2 charger needs a City of St. Helena electrical permit and inspection. HAXX prepares the submittal and meets the inspector.
Yes. HAXX installs both and explains the tradeoffs for your car and panel.
Most homes install a 40 to 60 amp circuit, which adds roughly 25 to 45 miles of range per hour depending on the car. Panel capacity sets the limit.
Often not. A load calculation and a right-sized circuit or load-management charger can avoid it.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
