Service Entrance
Heavy-duty service entrance switchgear for commercial and industrial facilities, available in multiple amperage and voltage configurations with UL-listed assemblies, Siemens components, and indoor or outdoor enclosure options.
Get dependable electrical switchboard services in Hillsborough backed by engineered solutions, code-focused documentation, and fast fulfillment. Whether you're upgrading service entrance equipment or sourcing custom switchgear for a commercial facility, DEI Power helps reduce downtime, avoid approval delays, and keep projects moving smoothly with solutions built for demanding power distribution needs.

We provide engineered switchboard solutions, supply support, and power distribution equipment for commercial and industrial applications.
Heavy-duty service entrance switchgear for commercial and industrial facilities, available in multiple amperage and voltage configurations with UL-listed assemblies, Siemens components, and indoor or outdoor enclosure options.
Specification-driven switchgear supply with configuration guidance, compliance documentation, and faster fulfillment support to reduce change orders, downtime, and schedule risk on critical electrical projects.
In-house engineering support for custom layouts, ratings, and system integration, helping contractors and engineers align switchboard solutions with project requirements and long-term performance goals.
Collaborative design and engineering services covering schematics, CAD layouts, component coordination, and finalized submittals to support accurate fabrication, code compliance, and smoother installation.
Low-voltage switchgear solutions designed for reliable power distribution, scalable configurations, and service-friendly maintenance in commercial buildings, industrial facilities, and infrastructure projects.
High-capacity switchgear for demanding environments requiring coordinated protection, stable load management, and dependable operation across large campuses, plants, and critical infrastructure systems.
DEI Power delivers electrical switchboard services that prioritize safety, compliance, and schedule certainty. For Hillsborough projects, that means equipment and documentation aligned for commercial buildouts, infrastructure upgrades, and demanding facility requirements without unnecessary delays. From custom configurations to UL 891-certified assemblies, every solution is designed to support smoother approvals, dependable operation, and easier long-term service.

See how dependable switchboard solutions help projects stay compliant, on schedule, and operational.
We combine manufacturing capability, engineering support, and compliance-focused service for critical power projects.
UL 891-certified solutions support safer, code-compliant switchboard installations for demanding commercial applications.
Rapid shipping helps Hillsborough projects reduce downtime and keep electrical schedules moving forward.
Approved Siemens OEM status supports precise component integration and dependable long-term performance.
In-house manufacturing gives Hillsborough customers better schedule control and fewer avoidable project delays.
Experienced specialists supporting complex electrical distribution needs.
DEI Power brings more than 10 years of switchgear experience to commercial, industrial, and utility projects requiring dependable electrical distribution. Operating from a 50,000 sq. ft. Ontario, California facility, the company manufactures and assembles UL 891-certified switchboards with a strong focus on quality control, documentation accuracy, and faster turnaround. That depth is especially valuable for Hillsborough customers managing service upgrades, facility expansions, or infrastructure work where approval timelines and uptime matter. DEI Power has grown beyond manufacturing alone to provide engineering support, custom configurations, and responsive fulfillment that help contractors, engineers, and facility teams move projects forward with fewer delays and less risk.
Switchboard replacement cost depends on amperage, voltage, enclosure type, utility requirements, and whether custom engineering or service entrance equipment is needed. Commercial-grade systems can vary significantly because documentation, approvals, and component selection affect total project cost. DEI Power helps narrow pricing by reviewing specifications, ratings, and application needs before quoting, which reduces change orders and helps align the equipment with code and installation requirements.
Talk with our team about specifications, lead times, and quotes.
We support Hillsborough customers and broader project needs with responsive service for commercial and industrial electrical distribution.
Nationwide Coverage
Service Area
24/7 Phone Availability
Support Access
3-5 Day Delivery
Shipping Speed
Confirm coverage and project support with our team.
Verified low-voltage switchgear compliance.
Approved manufacturer using Siemens components.
Domestic production supporting compliant sourcing.
Share your project details, ratings, and timeline, and our team will help you identify the right switchboard solution.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.
For immediate assistance, feel free to give us a direct call at (866) 773-8050. You can also send us a quick email at sales@deipower.com.