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Main Electrical Panel Services in San Antonio

What’s with This Metal Box with Switches in My Garage?

The main electrical panel is the heart of your home’s electrical system, and your distribution point for all the electric circuits in your home. It’s so important, that we guarantee your electrical panel and main service replacement project will be completed on or before the date we promised. We guarantee our workmanship for a period of 3 years or more. If your panel or service gives you any trouble at any time during that period, we will repair the problem free of charge. We guarantee that all materials used will be as specified and up to the code in your area. And, we guarantee to protect the condition of your home.

What Is a Main Electrical Panel?

As you add electrical appliances and circuits, you increase the demand on your power panel. Depending on when your home was built and how much electricity you use, your power panel may need to be replaced or a sub-panel added to keep up with demand.

All of the power for your home comes through this panel from the utility company, to the exit wires that split off and service different parts of the house. These exit wires are called branch circuits or branch wire circuits. Service wire lugs connect the power from the utility through the electric meter to the electrical panel, and are highly dangerous points that should never be touched. The main electrical panel is the central distribution point for all branch circuits of the house.

Branch circuits are connected to the service panel via circuit breakers. The circuit breakers have no purpose other than safety, since they immediately cut off electricity to branch circuits in the event of overload. You can access these circuit breakers and turn them on and off to restrict power to a particular circuit in your home.

The service wire lugs connect the power from the utility to your home and contain intense, concentrated power. It is impossible to turn off the power to the service wire lugs. Main service is continually on, except in the event of an overall power failure, or if you make a special request with the utility company to shut off power from the street.

Unlike branch wire circuits, which are just a portion of the entire electrical service to the house, the service wire lugs represent every single amount of electricity coming into the house. If your home has a screw-in fuse panel, an obsolete panel, or even worse, has lost its UL listing due to a faulty main breaker or circuit breaker—you may have to consider a new electrical panel for your home. Installing a new electrical panel in your home will increase your safety and peace of mind knowing that the heart of your electrical system is working properly for you and your home.

Components of main electrical panels include; the housing unit, panel door, circuit breakers, hot bus bars, neutral bar, ground wire and a ground bar. Changing out or upgrading your electrical service is a job for an experienced electrician.

Call our experienced electricians at Mister Sparky® of San Antonio, and we’ll go over your options with you.

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Sparks Fly Between Us and Our Customers

4.8

2951 reviews

4.8

2951 reviews

Sparks Fly Between Us and Our Customers

Read Our Reviews

Uriah Meyer

My experience with The Mister Sparky team was great. I had an urgent issue with my outdoor panel following an home inspection and Timothy was on scene a couple of hours later. He took diagnostics and made sure all my questions were answered. The second day Keith and Matthew arrived and worked together to resolve issues in both our house panels. They were both professional and responsive and took their time afterwards to review their work with me.

Allen Aldrete (TRIPE)

We had an emergency situation or subpanel was going out causing the outside breaker to get up to 150 They answered my phone call and they sent Roberto out here who helped us get the stuff we need and the pricing just right and then the journeyman came and installed it all. which they also did an amazing job. Everyone quit this company was amazing and we thank you very much from the bottom of our heart

Ron Heredia

Excellent service and installation of a severely worn out sub panel and checking our oven that caught fire recently. Timothy, Matthew and his helper (sorry forgot your name) were respectful and professional. Very clean work. Also added a surge protector to the main panel. Thank you, well worth the investment.

Darryn Christian

I recently had Mister Sparky San Antonio replace my outside breaker panel and the sub panel located in my garage, and I couldn’t be more impressed or pleased. Matt and Keith worked together seamlessly and exceeded all my expectations. They were not only highly knowledgeable and professional, but also incredibly friendly—I felt like I had known them for years by the end of the day. What stood out most was how they handled unexpected issues in real time, taking the time to explain everything clearly so I understood exactly what was happening. They even went above and beyond their original scope of work—replacing a ceiling fan with a burned-out motor and fixing an improperly installed outdoor light from a previous contractor. It was a truly great experience from start to finish. I wouldn’t hesitate to call on them again for future electrical needs. Highly recommended!

Marco R

I needed a simple receptacle install to mount my LED mirror. Mr. Corey arrived to my house a lot earlier than expected. He was well mannered, knowledgeable, and easy going. Based on his work you could tell that it was professionally done and even cleaned up after himself. I will definitely be using this company so long as Corey works here. Thank you sir!

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