Electrical System Installation or Rewiring in Huntington Beach, CA


We deliver premium electrical system installation or rewiring services specifically designed for Huntington Beach properties. Our licensed electricians bring decades of combined experience to every ADU and garage conversion project, ensuring your electrical infrastructure meets both current needs and future demands.


Proper electrical systems form the foundation of any successful conversion. From calculating appropriate load requirements to installing dedicated circuits for modern appliances, our comprehensive approach addresses every aspect of your electrical needs. We meticulously handle panel upgrades, circuit installations, outlet placement, lighting design, and smart home integration.


What sets our electrical services apart is our meticulous attention to detail. We conduct thorough assessments of your existing systems before recommending the most efficient, cost-effective solutions. Our team navigates Huntington Beach's permitting process seamlessly, saving you time and potential headaches.


Safety remains our paramount concern. We implement industry-leading practices for fire prevention, surge protection, and overload safeguards. Every connection we make undergoes rigorous testing before final approval.


Don't compromise on electrical quality—it's too important for your family's safety and your property's value. Trust Refined ADU Builder & Garage Conversions for electrical systems that deliver peace of mind through reliable performance, energy efficiency, and code compliance for years to come.

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Our Installation Process

We handle all aspects of electrical installations—upgrading wiring, installing panels, and designing new circuits—to ensure your system is efficient, safe, and suited to your needs. Our approach prioritizes compliance with local codes and long-term reliability.

Wiring Upgrades and Replacements

Upgrading your wiring is essential for safety and capacity. We replace outdated or damaged wiring with modern, code-compliant materials to prevent hazards like electrical fires or shorts.


Our team evaluates your current wiring layout to identify weak points or overloaded circuits. We install durable copper wiring designed to support increased electrical loads from appliances and devices.


We also ensure all wiring meets California electrical standards, including proper insulation and grounding. This minimizes future maintenance needs and protects your property’s electrical infrastructure.

Electrical Panel Installation

Installing a new electrical panel requires precision and experience. We fit panels that match your power demands and allow for easy future expansions.


Our installations include main breaker panels, sub-panels, and transfer switches for backup power solutions. We optimize panel placement for accessibility while following safety codes.


We double-check all connections to prevent faults and improve circuit distribution. Our service includes labeling each circuit for straightforward troubleshooting and maintenance.

New Circuit Design 

We design new circuits tailored to your property’s layout and power needs. This includes adding dedicated circuits for high-demand appliances or specialized equipment.


Our process involves calculating the required load, selecting appropriate breakers, and planning wiring paths that avoid interference or damage risks.


We integrate control systems where needed, such as smart switches or surge protectors. Our goal is to deliver systems that balance performance and safety, customized to your usage patterns.

Code-Compliant Electrical Rewiring

We ensure your electrical system is updated safely by removing old wiring, meeting modern safety standards, and managing all required permits and inspections. Each process is handled with precision to protect your property and comply with local regulations.

Old Wiring Removal

Removing outdated wiring is crucial to prevent fire risks and electrical failures. We carefully disconnect and extract old wires, including knob-and-tube, aluminum, or damaged copper wiring, which can deteriorate over time.


Our team protects your walls and finishes during removal, minimizing disruption to your home or business. We inspect the wiring to identify any hidden hazards such as frayed insulation or corrosion, which could pose serious dangers.


This step prepares the property for a complete or partial rewiring upgrade that supports new electrical loads and devices safely and efficiently.

Modern Safety Standards

We install wiring systems that strictly follow the latest National Electrical Code (NEC) and California state requirements. This includes the use of grounded circuits, GFCI outlets in wet areas, AFCI breakers for bedrooms, and proper cable gauges for current capacity.


Our installations feature updated breaker panels and circuit designs to enhance fire safety and reduce the risk of electrical shocks. We use quality materials to ensure durability and reliable performance over time.


By incorporating energy-efficient and smart wiring solutions, we also prepare your property for future upgrades and increased power demands.

Permitting and Inspection

Navigating permits and inspections can delay rewiring projects if not properly handled. We manage the entire process with the Huntington Beach building department to secure the necessary electrical permits before work begins.


Our team schedules and oversees inspections at critical stages to guarantee compliance with safety codes and municipal regulations. We address any issues quickly to avoid rework or penalties.


This coordination ensures a smooth project timeline and final approval, giving you peace of mind that your electrical system is safe and legal.

Why Choose Us

We prioritize safety, skill, and clear communication in every electrical installation or rewiring project we undertake. Our Huntington Beach team brings certified expertise, in-depth local knowledge, and a client-focused approach to ensure each job meets high standards and client expectations.

Licensed Team

Our electricians hold all necessary licenses and carry full insurance to protect your property and ours during the project. This ensures compliance with California’s electrical codes and regulations. We invest in ongoing training to keep our team updated on the latest technologies and safety protocols. This reduces risks and enhances the quality and longevity of every electrical system we install or rewire.

Local Expertise

We have operated exclusively in Huntington Beach and nearby areas for years, developing deep familiarity with local building codes and utility company requirements. This helps avoid costly delays and compliance issues. Our experience spans residential ADUs and garage conversions, handling electrical load calculations, panel upgrades, and modern wiring techniques specific to these property types. 

Customer Satisfaction

We assign a dedicated project manager to each electrical installation or rewiring job. This person acts as your single point of contact, coordinating schedules, deliveries, and communications. Our project managers emphasize transparency and responsiveness. We provide clear timelines, progress updates, and budget tracking to keep you informed at every stage.

FAQS on Electrical System Installation or Rewiring

We prioritize both safety and efficiency in every electrical system installation. Our methods include thorough planning, adherence to code, and use of quality materials.

  • How much does electrical rewiring cost for an ADU in Huntington Beach?

    Electrical rewiring for an ADU in Huntington Beach typically costs between $3,500-$7,500, depending on square footage, complexity, and whether you need a panel upgrade. Factors affecting cost include service size requirements, fixture count, and whether specialized circuits are needed for appliances like HVAC systems.

  • Do I need permits for electrical work in my garage conversion in Orange County?

    Yes, permits are absolutely required for electrical work in garage conversions in Orange County. All electrical modifications, including new circuits, outlets, lighting, and especially panel upgrades must be permitted through your local building department. Working without permits can result in fines, failed home inspections, and insurance complications.

  • How long does electrical installation take for a new ADU?

    Electrical installation for a new ADU typically takes 3-5 days for the actual installation work. However, the complete process including permitting, inspections, and potential utility coordination can extend the timeline to 2-4 weeks. Complex systems or panel upgrades may require additional time.

  • Can existing electrical panels handle additional ADU power requirements?

    Most existing residential electrical panels cannot adequately handle additional ADU power requirements without upgrades. Typical homes have 100-150 amp service, while adding an ADU often requires upgrading to 200+ amps. A professional load calculation is necessary to determine if your current panel has sufficient capacity or requires upgrading.

  • What electrical code requirements must be met for ADU conversions in California?

    California ADU electrical work must comply with the California Electrical Code (based on the National Electrical Code) plus local amendments. Key requirements include:


    • GFCI protection in kitchens, bathrooms, outdoors, and garages
    • AFCI protection for bedroom circuits
    • Dedicated 20-amp circuits for kitchen countertops
    • Smoke and carbon monoxide detectors with battery backup
    • Energy-efficient lighting compliant with Title 24 standards
    • Proper grounding and bonding systems
    • Minimum outlet spacing requirements (outlets every 12 feet of wall space)
    • Tamper-resistant receptacles

    All work must be performed by licensed electrical contractors and pass city inspections.