Business Details
50+ Years
experience
Your Trusted Electrical Supply Partner in California
United Electric Supply was founded in 1975 by Norman Gronna, establishing a legacy of customer-focused service in the electrical industry. Acquired by Main Electric Supply, Inc. in 2011, we continue to expand our reach across California while maintaining long-standing relationships with electricians, builders, and industry professionals. Our commitment to innovation ensures we deliver comprehensive solutions to evolving industry challenges. With two branch offices in Chino and San Diego, we combine decades of experience with cutting-edge technology to meet the demands of developers, architects, and designers. Our team prioritizes reliability, supply chain efficiency, and personalized support, ensuring clients receive tailored products and services.As part of Main Electric Supply, a company rooted in industry leadership since 1946, we uphold values of integrity, expertise, and sustainable growth. Our partnerships with trusted vendors and focus on smart home integration, lighting controls, and electrical components position us as a one-stop resource for industry professionals. We remain dedicated to advancing technology adoption while preserving the personalized service that has defined our reputation. Our mission is to empower clients with innovative solutions that enhance project outcomes and drive industry progress. Together, we aim to build a brighter, more sustainable future for the electrical industry.
Services
Electrical Supplies
Lighting Solutions
Switch Gear
Smart Home Integration
Vendor Partnerships
Product Bulletins
Home Automation
Wi-Fi Controls
Electrical Components
Industry Solutions
Details
- Year established: 1975
Highlights and features
- We offer over 45 years of experience in the electrical supply industry.
- Our team maintains faithful relationships with electricians and builders.
- We provide comprehensive solutions to industry challenges.
- We embrace technology to meet evolving industry demands.
- Our service spans most of California with two branch offices.
Services
Electrical Supplies
We supply high-quality electrical components, including wiring, panels, and industrial-grade materials tailored for commercial and residential projects. Our inventory meets industry standards and supports builders, electricians, and contractors in delivering safe, efficient installations. With partnerships across the supply chain, we ensure timely delivery of reliable products for any scale of operation.
Lighting Solutions
Our lighting solutions encompass commercial, residential, and smart lighting systems, including energy-efficient LED options. We offer product lines from trusted vendors like Leviton, featuring Wi-Fi-enabled dimmers, switches, and automation tools. These systems integrate with voice assistants and mobile apps, enabling remote control and scheduling for enhanced convenience and energy savings.
Smart Home Integration
We specialize in smart home technologies, including Leviton Decora Smart Wi-Fi devices compatible with Apple HomeKit, Amazon Alexa, and Google Assistant. Our solutions allow seamless control of lighting, outlets, and appliances via mobile apps or voice commands. This service caters to modern homeowners seeking convenience, security, and energy efficiency through interconnected systems.
Vendor Partnerships
Our vendor partnerships ensure access to cutting-edge electrical products and technical support from industry leaders. We collaborate with manufacturers to provide clients with innovative solutions, product training, and customized support. These relationships enable us to offer specialized lines, such as Decora Smart devices, while maintaining competitive pricing and reliability.
Product Bulletins
We provide detailed product bulletins and technical documentation to guide clients in selecting and installing electrical systems. These resources include specifications, compatibility guides, and usage instructions for products like Wi-Fi lighting controls. Our goal is to empower customers with accurate, up-to-date information to streamline project planning and execution.
People
Norman Gronna
Founder
Founded United Electric Supply in 1975, leading it as a family-owned business for 36 years. Committed to customer service and industry innovation, he built lasting relationships with electricians and builders across California.
Burt McCombs
Co-Founder of Main Electric Supply
Co-founded Main Electric Supply in 1946, establishing a legacy of meeting electrical industry demands. His leadership laid the foundation for the company's enduring reputation in supply chain excellence.
Charles Vowels
Co-Founder of Main Electric Supply
Partnered with Burt McCombs in 1946 to launch Main Electric Supply, driving its growth into a trusted provider of electrical solutions. His vision shaped the company's commitment to quality and customer-centric service.
Questions
What services does United Electric Supply offer?
We provide electrical supplies, lighting solutions, smart home integration, vendor-partnered products, and technical resources for residential and commercial projects.
How long has United Electric Supply been in business?
We were founded in 1975 and have served the electrical industry for over 45 years.
Do you offer smart home solutions?
Yes, we offer Leviton Decora Smart Wi-Fi devices compatible with Apple HomeKit, Amazon Alexa, and Google Assistant for remote control and automation.
What areas do you serve?
We serve most of California from our branches in Chino and San Diego.
