Licensed C-10 Electrician — Los Angeles & Riverside

ADU, Remodel & New Construction
Electrical Services

Complete electrical planning and installation for ADUs, garage conversions, renovations, additions, and new builds — from service capacity and rough wiring through final inspection.

Planned correctly. Coordinated clearly. Built to code.

Licensed & Insured  •  Permit Coordination  •  25+ Years Experience  •  Free Estimates

Underground electrical conduit installation for new construction in Los Angeles and Riverside

Construction Electrical

Electrical Services for Growing Properties

ADUs, garage conversions, home additions, remodels, and new construction require more than a repair electrician. The electrical system has to be planned around the proposed layout, calculated loads, available service capacity, construction schedule, and inspection sequence.

Sigma C&S Electric works with homeowners, general contractors, designers, and other trades to plan circuits and equipment before walls close. That early coordination helps prevent undersized panels, missing circuits, conflicts with other systems, and costly rework later.

  • ADUs and detached accessory structures
  • Garage conversions and room additions
  • Kitchen, bathroom, and whole-home remodels
  • Ground-up residential and commercial construction

Discuss Your Project

(323) 640-1388

Mon–Fri 7:00 AM – 5:00 PM • Sat 8:00 AM – 2:00 PM

Project Scope

What Sigma Can Help With

Electrical work is coordinated from planning and service capacity through rough-in, trim-out, testing, and inspection.

Electrical Planning

Review layouts, loads, circuit needs, equipment locations, and construction sequencing before installation begins.

Panel Upgrades

Evaluate and improve main service capacity when additions or new electrical loads exceed the existing panel.

Subpanels

Properly sized distribution for ADUs, additions, garages, workshops, and separated project areas.

Underground Electrical

Conduit and underground feeder installation for detached structures, ADUs, and new service routes.

Dedicated Circuits

Correctly sized circuits for appliances, HVAC equipment, kitchens, laundry, EV charging, and specialty loads.

Lighting Design

Circuit and fixture planning for recessed, decorative, task, exterior, and code-required lighting.

Low-Voltage Rough-In

Planned pathways and rough-in for data, communications, security, and controls where included in the project scope.

Final Trim-Out

Installation and testing of outlets, switches, fixtures, devices, controls, labels, and finish electrical components.

Accessory Dwelling Units

ADU Electrical Services

Detached ADUs and garage conversions often need their own electrical distribution, dedicated appliance circuits, exterior feeds, and a clear plan for how the new load connects to the main property. We evaluate the existing service before deciding whether the project needs a subpanel, panel upgrade, underground feeder, or utility involvement.

The electrical scope is coordinated with the approved plans and local authority requirements in Los Angeles or Riverside. Where utility coordination is required, we help identify the electrical requirements and sequence our work around the applicable utility and inspection process.

  • Detached ADU electrical distribution and underground feeds
  • Garage conversion rewiring and code corrections
  • Subpanel sizing, installation, labeling, and testing
  • Dedicated circuits for kitchens, laundry, HVAC, and appliances
  • Permit and inspection coordination for the electrical scope
  • Capacity planning for future Level 2 EV charging

Plan Capacity Before Construction

ADU loads can affect the main home, future EV charging, and available panel space. We review those demands before rough wiring begins so the final system is sized for the completed property.

Renovations & Upgrades

Remodel Electrical Work

Remodel electrical work has to connect new layouts and equipment to an existing system that may have limited capacity, outdated wiring, or previous work that no longer meets current requirements. We evaluate what can remain, what needs correction, and what must be added before finishes go in.

For kitchen and bathroom remodels, that means planning appliance circuits, GFCI and AFCI protection, lighting, ventilation, switching, and equipment locations together. Whole-home renovations may also require rewiring, service changes, and phased coordination with other trades.

Kitchen Remodels

Appliance circuits, countertop receptacles, lighting, controls, and service-capacity review.

Bathroom Remodels

GFCI protection, lighting, ventilation circuits, dedicated loads, and wet-location requirements.

Whole-Home Rewiring

Replacement or extension of aging wiring as walls open and the home layout changes.

Lighting Upgrades

Recessed, decorative, task, under-cabinet, exterior, and control-system improvements.

Code Corrections

Corrections to unsafe, unpermitted, overloaded, or noncompliant existing electrical work.

Ground-Up Electrical

New Construction Electrical Work

Electrical installation is coordinated with plans, framing, mechanical systems, equipment schedules, inspections, and the work of other trades from rough-in through final approval.

Rough Wiring

Boxes, conduit, cable routes, branch circuits, grounding, and equipment feeds installed before walls close.

Service Installation

Service-equipment planning and installation based on calculated project loads and approved requirements.

Panel Installation

Main panels and subpanels installed, organized, labeled, tested, and prepared for final inspection.

Underground Feeds

Underground conduit and feeders for services, detached structures, site equipment, and exterior project loads.

Final Inspections

Trim-out, device testing, corrections, labeling, and coordination through the electrical final.

How It Works

Our Construction Electrical Process

A defined process keeps electrical work aligned with the project scope, inspection schedule, and other trades.

STEP 01

Consultation

Review the property, plans, goals, schedule, and who is coordinating the overall project.

STEP 02

Planning

Confirm loads, panel capacity, circuits, equipment locations, routes, and electrical scope.

STEP 03

Permit Coordination

Coordinate the electrical permit and inspection requirements applicable to the project.

STEP 04

Installation

Complete underground, service, rough, panel, circuit, lighting, and trim work in sequence.

STEP 05

Inspection

Prepare for required inspections, address electrical corrections, and verify installed work.

STEP 06

Completion

Finish trim-out, labeling, testing, cleanup, and electrical closeout for the completed scope.

Related Services

Plan the Supporting Electrical Work

Related Service

Panel Upgrades

Increase electrical capacity when an ADU, addition, remodel, or new equipment exceeds the existing service.

Panel Upgrades

Related Service

EV Charger Installation

Plan a dedicated Level 2 charging circuit during construction or prepare capacity for a future installation.

EV Charger Installation

Related Service

Troubleshooting & Repair

Diagnose existing electrical faults and unsafe conditions discovered before or during renovation work.

Troubleshooting & Repair

Related Service

Lighting & Fixtures

Coordinate recessed, decorative, exterior, landscape, and control-system lighting with the finished design.

Lighting & Fixtures

Plan Your ADU, Remodel, or New Construction Electrical Work

Serving Los Angeles and Riverside. Share your plans, project stage, and electrical needs so we can review the scope and next steps.

Licensed • Permit-Ready • Code-Compliant • Free Estimates

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