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36 Years
experience
Emergency
services
Trusted Electrical, Renewables, and Technology Solutions
Since 1990, CSI Electrical Contractors has been a leader in technical and innovative electrical design and construction. Our team of consultants, engineers, and project managers delivers high-caliber electrical, energy, and technology solutions across commercial, industrial, and specialized sectors. With expertise in aerospace, healthcare, education, and renewable energy, we combine 30+ years of experience with cutting-edge BIM/CAD technology to ensure precision and efficiency. Our commitment to safety, quality craftsmanship, and client collaboration has established us as a trusted partner for complex projects. We specialize in mission-critical power systems, renewable energy installations, and technology infrastructure, serving clients nationwide through four regional offices.

Our pre-construction planning and prefabrication processes reduce costs and timelines while maintaining exceptional standards. Recognized for completing over 3 GW of solar projects, we offer end-to-end solutions from design to maintenance. Our 24/7 emergency services and preventive maintenance programs ensure continuous operational reliability for clients. Through strategic partnerships and a skilled workforce, we self-perform all aspects of large-scale electrical and renewable energy projects. Our dedication to innovation and client satisfaction drives every project, from small upgrades to complex infrastructure developments.
Services
Electrical Construction Renewable Energy Solutions Technology Integration Solar Power Systems Emergency Services Building Management Systems Energy Storage Preventive Maintenance Design-Build Projects Critical Power Systems
Details
  • Year established: 1990
Highlights and features
  • 30+ years of experience in electrical engineering and construction
  • ISO 9001-certified quality management systems
  • Self-perform all aspects of large-scale solar projects
  • 24/7 emergency service and preventive maintenance programs
  • Regional offices serving multiple California locations
Associations and certifications
  • ISO 9001
What people say
Highest caliber workmanship Proactive solutions Fair pricing Responsive management Industry-leading solar expertise
Services
Electrical Construction
We provide comprehensive electrical construction services for commercial and industrial projects. Our team handles everything from basic installations to complex mission-critical power systems. With BIM/CAD technology and prefabrication techniques, we ensure precision and efficiency in every project phase. Our expertise covers medium voltage systems, critical work plan development, and LEED-certified construction.
Renewable Energy Solutions
As one of America's top solar contractors, we specialize in utility-scale photovoltaic systems and battery energy storage. Our services include design, engineering, procurement, construction, and maintenance of solar generating facilities. We offer integrated solutions combining solar with energy storage systems, serving clients nationwide with projects exceeding 3 GW of installed capacity.
Technology Integration
Our RCDD-certified professionals deliver advanced technology solutions for data networks, security systems, and wireless infrastructure. We specialize in structured cabling, fiber optics, distributed antenna systems, and security integration. Our team ensures seamless connectivity and future-ready infrastructure for commercial buildings and critical facilities.
Emergency Services
We provide immediate response for electrical emergencies with trained technicians available around the clock. Our service team handles power outages, equipment failures, and weather-related issues. Preventive maintenance programs include thermography analysis, power quality assessments, and system monitoring to minimize downtime and ensure safety.
Building Management Systems
We install and maintain digital building management systems from leading manufacturers like Siemens and Johnson Controls. Our expertise covers HVAC controls, lighting systems, medical gas monitoring, and custom automation solutions. We ensure energy efficiency and regulatory compliance through advanced system integration and retrofitting services.
Questions
What industries do you serve?
We serve aerospace, healthcare, education, biotech/pharmaceutical, entertainment, hospitality, manufacturing, retail, and public works sectors.
Do you offer emergency electrical services?
Yes, we provide 24/7 emergency response for power outages, equipment failures, and weather-related incidents.
Are you certified for quality standards?
We maintain ISO 9001 certification for our quality management systems and safety protocols.
What renewable energy services do you provide?
We design, construct, and maintain utility-scale solar PV systems and battery energy storage solutions.
How do you handle complex projects?
Our integrated approach combines BIM/CAD technology, prefabrication, and experienced project management teams for efficient execution.
Where are your service locations?
We operate from four California locations: Santa Fe Springs, Palmdale, Santa Clarita, and San Jose.
Reviews (6)
James Vaughn
Jan 23, 2022 Report
Sweet place, very well set up, smooth running and on top of everything. Hope to give more responses in the future. Thank you to everyone there, but didn't help me after an injury on the job
Travis Kohmescher Tdkrizenshine
Jan 12, 2022 Report
As an employee of CSI Electrical Contractors, Inc. I can say I am proud to be a part of this highly skilled, highly motivated, professional and competitive organization.
Michael Melendez
Apr 23, 2021 Report
Best electrical contractor I have ever worked with. Always more then willing to answer questions I had.
Monster Towing Whittier
Apr 25, 2020 Report
I've never been here I keep pushing the button saying I've never been here so respectfully let me keep it netural
Steven Fritz
Jun 01, 2019 Report
If you need real solutions to any electrical problem, CSI is the answer. CSI is the best in the electrical field, and the people that work here are like one big family.
Tobi Rector
Mar 10, 2017 Report
Paul is a great electrician -simply the best. He's super responsive and easy to work with as well- I have called him for a few "need someone asap" items and he always comes through quickly. In addition, he's really helpful and knowledgeable in making recommendations. Very friendly and nice. If you ever need an electrician you have to call Paul. He's the best there is!