ADU Electrical Installation
Building an ADU in Los Angeles County? Getting the electrical right from the start, permits, sub-panel, dedicated circuits, GFCI, and hardwired detectors, saves time and money before the walls are ever closed.
Licensed · Bonded · Insured · CA Lic. C-1098584
August 17, 2026
Accessory Dwelling Units are booming across Los Angeles County. Whether you're adding a detached backyard unit, converting a garage, or building a junior ADU inside your existing home, it represents a serious investment. But before you focus on square footage and finishes, the electrical needs to be done right, from the start.
At B&M Electrical Services, we handle complete ADU electrical installations for homeowners across the Antelope Valley, Santa Clarita Valley, San Fernando Valley, and greater Los Angeles, fully permitted and code-compliant.
It depends on size and your existing panel's capacity. A small attached ADU may run from a new sub-panel and dedicated circuits tied to your main service. A larger detached ADU, or one intended as a rental, typically requires its own meter and service entrance. We assess your existing system and advise on the most cost-effective approach before any work begins.
All ADU electrical work in Los Angeles County requires permits through LA County Building & Safety or the relevant city department. LA County's ADU program has streamlined approvals, but only when your contractor is licensed and submits compliant plans. We manage the permit process and coordinate with inspectors so you don't have to.
Retrofitting electrical after walls are closed is expensive and disruptive. Involving a licensed electrician at the planning stage saves time and money on every ADU project, and ensures you pass inspection the first time.
Owner and Master Electrician Barrett brings 29 years of experience and a 4.8-star rating from 113+ Google reviewers across Palmdale, Santa Clarita, Van Nuys, and all of Los Angeles County. Request a free quote or call (661) 676-0615. Licensed · Bonded · Insured.
Our Services
Licensed lighting installation, panel upgrades, EV charger installation, new circuits & wiring, and troubleshooting & repairs for homes and businesses across the Antelope Valley and greater LA County.
Where We Work
Dispatched from Acton, CA, serving homes and businesses across the Antelope Valley, Santa Clarita and greater Los Angeles County.
Trusted By Homeowners
Brandon Rojas
I had a great experience with this electrical service. The team showed up on time, worked efficiently, and finished the job faster than I expected while still doing everything the right way. The price was very fair compared to other quotes I received, which made the whole experience even better because the quality of work was still top-notch. I also want to give a shout out to Barrett for being pr…
Loren Gibson
B&M has done a couple jobs for me in the past year, very pleased with the work. Fast, efficient, fair pricing and the work is always really clean. Definitely a returning customer.
Travis Steinbock
Barrett came out and gave me a good price on the work. They replaced my electrical panel and installed a disconnect for my AC unit. Then the next day, had a guy come out to patch up the wall and paint when the stucco dried. He also had the number of an AC technician for me to call to move a thermostat wire. Overall, great work and very communicative throughout the process.