Electrical Systems Unlimited, LLC, based in Fontana, California, is a commercial and industrial electrical contracting firm specializing in emergency power systems, certified infrared thermography, switchgear and breaker maintenance, and GFI compliance testing. We bring 25 years of direct field experience to every deployment, backed by our C-10 electrical contractor license, OSHA safety certifications, NFPA 70E compliance credentials, and full commercial insurance coverage. Our objective is direct: maintain operational uptime, code compliance, and personnel safety across mission-critical facilities through proven electrical engineering practices.