Today, we lead the way in solar & clean energy solutions, helping homeowners & businesses install, maintain, and upgrade systems built to last. Licensed and insured in Long Beach, LA County, Orange County Communities and Surrounding Areas
At Mario Castillo Electric, we do more than flip the switch — we keep your power running for the long haul. For over 20 years, our licensed and insured team h
as served Southern California with expert residential, commercial, and industrial electrical services. Today, we’re also leading the way in solar and clean energy solutions — helping homeowners and businesses install, maintain, and upgrade systems built to last. Whether you need a new solar installation, troubleshooting on an inherited system, battery storage integration, or ongoing maintenance, we’ve got you covered. We’re here long after the install is done, making sure your power is reliable, efficient, and ready for the future. What we offer:
- Residential, commercial & industrial electrical services
- Solar panel installation, upgrades & troubleshooting
- Battery storage integration (Tesla Powerwall, Enphase & more)
- Smart home & energy automation
- Long-term maintenance & system monitoring
At Mario Castillo Electric, we believe reliable power shouldn’t come with headaches. That’s why our customers trust us to deliver clear communication, expert solutions, and dependable service — every time. Ready to power your home or business with confidence?
