ADU Electrical Services in San Jose, CA
One point of contact for your ADU’s electrical scope, from permit to final inspection.
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Building an ADU in San Jose involves coordinating between you, your ADU contractor, and the city’s permit process, and the electrical scope sits right in the middle of all three. This page covers what that coordination actually looks like.
ADU Electrical Scope in San Jose
Sub-Panel Installations
The most common setup for a detached ADU sharing the main service.
Separate Meter Setups
For larger ADUs or where full electrical independence is preferred.
Dedicated Circuit Wiring
Mini-split heat pumps, water heaters, and AFCI-protected living zones.
City of San Jose Permit Process
City of San Jose/Santa Clara County permit turnaround for ADU electrical work runs about 1-3 weeks as a safe estimate for standard projects requiring review. San Jose’s express plan-check process can move qualifying simple work faster; complex projects can take longer. We file the permit and coordinate inspection as part of the job.
Sub-Panel vs. Separate Meter
Most San Jose ADUs are wired with a sub-panel fed from the main service, sized under Title 24, rather than a separate utility meter. We’ll walk you through which setup makes sense for your specific ADU size and planned electrical load.
A Recent San Jose ADU Project
A San Jose 550 sq. ft. detached-garage ADU conversion needed full electrical separation without adding a separate utility meter. We sized the system under Title 24, trenched a 90A feeder to a new 125A subpanel, and wired dedicated circuits for a mini-split heat pump, water heater, and AFCI-protected living zones.
Areas We Cover in San Jose
What Our Customers Say
“Handled all the ADU electrical wiring and subpanel hookup in San Jose. Permitting was seamless and the work quality was top tier.”
Valerie P.
“Handled all the ADU electrical wiring and subpanel hookup in San Jose. Permitting was seamless and the work quality was top tier.”
Valerie P.
What It Costs
ADU Electrical
From $2,000
Frequently Asked Questions
How does the City of San Jose ADU permit process work?
Use 1-3 weeks as a safe estimate for standard projects requiring review; San Jose’s express plan-check process can move qualifying simple work faster.
Do you coordinate directly with my ADU contractor?
Yes, we work directly with your builder so the electrical scope stays on the same timeline as the rest of the build.
Sub-panel or separate meter, which is right for me?
Most San Jose ADUs use a sub-panel fed from the main service; we’ll confirm which setup fits your ADU’s size and planned load.
Related
Get a Free ADU Electrical Scope Consult
Planning an ADU in San Jose? Let’s talk through the electrical scope before your permit application goes in.
