Wiring For Electrical Subpanels

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Service Providers in San Diego, CA since 1988

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As modern homes continue to add more appliances, it’s common for the main electrical panel to reach its capacity. When that happens, installing an electrical subpanel is often the best and safest way to expand your home’s electrical system without replacing the main electrical panel entirely.

At Point Loma Electric, Plumbing, Heating & Air, our licensed electricians specialize in electrical subpanel installation, repair, and troubleshooting. Whether you’re remodeling your home, adding additional circuits, or upgrading older wiring, we’ll make sure your new subpanel is installed safely, properly sized, and fully compliant with local codes.

Ready to expand your electrical system? Request an estimate online now or schedule service with our team.

What Is an Electrical Subpanel?

An electrical subpanel—also called a satellite panel or distribution panel—is a smaller service panel that branches off the main electrical panel. It helps distribute power to specific areas or additions of your home. Subpanels are commonly used for:

  • Room additions and remodels
  • Detached garages or workshops
  • ADUs (Accessory Dwelling Units)
  • Kitchens, high-demand appliances, or home offices
  • EV charger installations
  • Upgrading homes with limited breaker space

Adding a subpanel doesn’t increase the total electrical capacity of your home, but it allows you to organize circuits more efficiently and safely expand the system without overloading your main panel.

Signs You May Need to Add an Electrical Subpanel

Many older San Diego homes were not built with today’s electrical demands in mind. You may need a subpanel if you’ve noticed:

  • A full or overcrowded main electrical panel
  • Frequent breaker trips when using appliances
  • Plans to add high-demand equipment like air conditioning or EV charging
  • Limited space to add new circuits
  • Upcoming home renovations or additions

If your panel is full or you’re planning electrical upgrades, installing a subpanel is often the safest and most affordable solution.

Ready to upgrade? Schedule an electrical inspection with our experts today.

Professional Electrical Subpanel Installation

Correctly wiring an electrical subpanel is a technically advanced job that must be done by a licensed electrician. Mistakes can lead to overloaded circuits, fire hazards, or damage to your electrical system. That’s why homeowners throughout San Diego trust us for subpanel installation done right.

When you choose Point Loma Electric, Plumbing, Heating & Air, our team will:

  • Evaluate your current electrical load and capacity
  • Determine the right subpanel size for your home
  • Install and wire the subpanel to code
  • Add new breakers and circuits as needed
  • Label circuits clearly for easy use
  • Test the entire system for safety and performance

Every installation is performed using high-quality materials and best practices to ensure long-lasting reliability.

Request a subpanel installation estimate today.

Electrical Subpanel Repair & Troubleshooting

If your existing subpanel is malfunctioning, outdated, overheating, or frequently tripping breakers, it may need repair or a safety evaluation. Common issues include:

  • Corroded or loose wiring
  • Overloaded circuits
  • Burnt breakers or melted components
  • Improper grounding or bonding
  • Damage from DIY installations

Our licensed electricians provide thorough inspection and electrical subpanel repair services to restore safety and performance. If your subpanel is old or improperly installed, we can also recommend a full replacement when needed.

Why San Diego Homeowners Choose Point Loma

Point Loma Electric, Plumbing, Heating & Air has served San Diego since 1988. We specialize in electrical work for older homes—meaning we see and solve subpanel issues every day that other companies may overlook.

Homeowners trust us because we offer:

  • Licensed, background-checked, and highly trained electricians
  • Flat-rate, upfront pricing with no surprises
  • A satisfaction guarantee—if it’s not done right, we’ll make it right
  • Expertise in older home electrical systems unique to San Diego
  • Friendly, respectful service from a local, family-owned company

We are committed to providing safe, reliable electrical solutions that keep your home running efficiently.

Schedule Your Electrical Subpanel Service Today

Whether you’re upgrading your electrical system, adding circuits, or repairing an outdated subpanel, our experts are here to help. From start to finish, you’ll receive professional service, honest recommendations, and high-quality workmanship you can depend on.

Ready to get started? Request an estimate online or schedule your electrical subpanel service today.

Your home deserves electrical work that’s safe, code-compliant, and built to last—let Point Loma Electric, Plumbing, Heating & Air provide the trusted service you need.

Reviews

Hear It From Your Neighbors

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April 2025

I am very pleased with this company because they have great people working for them. [My technician] was organized and all were at the house in 2 days. Paper booties were worn. The electricians knew what they were doing and produce excellent work. I had 3 new circuits put in along with updating box. All this was done in one day. This co also sends a pix of technician who is coming to your house. Every person had lovely manners, and cleaned up, even vacuumed under stove when it was moved. A fine experience and I’d use them again.

Carol M.

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April 2025

I had a water leak at my house and its cause was extremely difficult to find. Our tech spent a long time carefully analyzing and testing all possible options until he found the cause of the leak, like really a true detective, that nobody else before him was able to find. He demonstrated not only that he is a truly top professional but the he also is kind, patient and understanding. He explained all the issues very well and was also mindful of my time and convenience. He works very fast, efficiently and reliably and is extremely nice human being.

Zofia D.

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April 2025

Point Loma Electric and Plumbing did electrical work in our house once and we liked the service the first time so we called them again. The technicians have been nothing but friendly and professional both times. They walked us through every step of the process. They showed up on time and completed the work in a timely manner. If we had any concerns they made sure the address them, if anything was needed, they handled it. We will definitely use Point Loma Electric and Plumbing again. Johnny who oversaw the work is the best!! Thank you

Tonya W.

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January 2025

Had an emergency water heater leak. Called Point Loma. Within the hour, James shows up and goes to work. And by the next day, we have a tankless water heater up and running. Thanks to James for the excellent customer attention, service and hard work!

Christine M.

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March 2025

Always great to work with them - years 2011 for new electrical panel, and 2025 for some minor upgrades. Erich and Leo corrected 3 problems with old wiring we were having. Very great team and very much appreciate their work.

Joleen L.

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May 2025

My a/c has not been working for some time. I called Point Loma Electrical and they sent Nicholas Mullins to stop by and check it out. What a great guy. He was very respectful, honest, evaluated the situation and made recommendations that I felt were straight forward. This company is top notch and I would recommend them to any of my friends and family. This is now my go to ac repair company.

Renae B.

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May 2025

We had Point Loma Elec rewire our entire 62 year-old house's electric. They worked efficiently and were thorough letting us know what was discovered and done each day. Timely, neat, and responsive and affordable with great financing. Highly recommend.

Lisa S.

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February 2025

This is a great team. I had to replace some fluorescent lights in the kitchen. I couldn't do it myself because the ballasts had to be replaced and that's above my skill level. Anthony and Matt came today and put in new led lights (with a 10 year warranty- fluorescent lights are ancient tech). Anthony and Matt were very professional and efficient. I would recommend them highly!

Jeffrey J.

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Your Neighborhood Electricians, Plumbers, Heating & Air
Service Providers in San Diego, CA.

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