If you’re building an Accessory Dwelling Unit (ADU) on your property, installing a dedicated subpanel is often the most efficient and code-compliant way to deliver power. At LA Pro Electrical, we provide professional ADU subpanel installation across Los Angeles and surrounding Southern California areas—ensuring every unit is wired safely, meets local code, and passes city inspection on the first try.
We specialize in complete ADU electrical systems, including panel upgrades, load calculations, and turnkey wiring for detached and attached units.
Why Your ADU May Need a Subpanel
A subpanel is a secondary electrical panel that distributes power from your main service panel to your ADU. It provides control, safety, and capacity for running appliances, lighting, outlets, HVAC, and more—without overloading your main panel.
You likely need a subpanel if:
Your main panel doesn’t have enough capacity
The ADU is detached or located far from the main house
You want separate circuit control for the ADU
Your electrician or plan reviewer requires load separation
You’re installing dedicated circuits for EV chargers, HVAC, or electric stoves
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What’s Included in Our Subpanel Installation for ADUs
At LA Pro Electrical, we make the process simple and complete. Every ADU subpanel installation includes:
✅ Load calculation to determine the correct amperage (70–200 amps)
✅ Installation of the subpanel with grounded, bonded connections
✅ All wiring from the main panel to the subpanel
✅ Breaker installation and circuit labeling
✅ GFCI and ARC-fault protection where required
✅ Conduit, trenching, or overhead connections as needed
✅ Compliance with California Electrical Code and LADBS permit requirements
Whether your subpanel feeds a one-bedroom ADU or a multi-room unit with heavy appliances, we size and install everything to meet your exact needs.
Book with Confidence – We Guarantee Inspection Approval
We’ve passed every Los Angeles city electrical inspection we’ve ever been part of, including subpanel installations for hundreds of ADU projects. Our licensed electricians work with your general contractor or architect to ensure full compliance with LADWP, Title 24, and local building codes.
You’ll receive a clean, organized panel installation that functions safely and looks professional.
Transparent Pricing with Instant Estimates
Use our online calculator to get real-time pricing that includes the cost of your ADU subpanel, wiring, circuits, and labor. Whether you’re bundling with full ADU wiring or need a subpanel installed separately, our system shows you the cost upfront—no surprises.
We also give you the option to:
Supply your own subpanel
Choose your preferred brand (Siemens, Square D, Eaton, etc.)
Request upgrades like surge protection or smart monitoring
Start Your ADU Subpanel Installation Today
Whether your ADU is a detached guest house, converted garage, or backyard studio, LA Pro Electrical can install the subpanel you need to power it safely and efficiently.
Los Angeles CA areas we serve:
We proudly serve all neighborhoods in Los Angeles County. Common areas we service include: Book your ADU Subpanel Installation Today!
- Agoura Hills
- Alhambra
- Arcadia
- Artesia
- Avalon
- Azusa
- Baldwin Park
- Bell
- Bell Gardens
- Bellflower
- Beverly Hills
- Bradbury
- Burbank
- Calabasas
- Carson
- Cerritos
- Claremont
- Commerce
- Compton
- Covina
- Cudahy
- Culver City
- Diamond Bar
- Downey
- Duarte
- El Monte
- El Segundo
- Gardena
- Glendale
- Glendora
- Hawaiian Gardens
- Hawthorne
- Hermosa Beach
- Hidden Hills
- Huntington Park
- Industry
- Inglewood
- Irwindale
- La Cañada Flintridge
- La Habra Heights
- La Mirada
- La Puente
- La Verne
- Lakewood
- Lancaster
- Lawndale
- Lomita
- Long Beach
- Los Angeles
- Lynwood
- Malibu
- Manhattan Beach
- Maywood
- Monrovia
- Montebello
- Monterey Park
- Norwalk
- Palmdale
- Palos Verdes Estates
- Paramount
- Pasadena
- Pico Rivera
- Pomona
- Rancho Palos Verdes
- Redondo Beach
- Rolling Hills
- Rolling Hills Estates
- Rosemead
- San Dimas
- San Fernando
- San Gabriel
- San Marino
- Santa Clarita
- Santa Fe Springs
- Santa Monica
- Sierra Madre
- Signal Hill
- South El Monte
- South Gate
- South Pasadena
- Temple City
- Torrance
- Vernon
- Walnut
- West Carson
- West Covina
- West Hollywood
- Westlake Village
- Whittier
