We offer a full-line of expert services.

From design and installation to maintenance and relocation. Our turnkey solutions make it easy for our customers to have a single source for all their needs. We continually enhance our services and capabilities to exceed the goals of our customers and to stay on the leading edge of technology.

24-Hour Service

Holidays? Night shifts? Weekends.

We understand the importance of keeping your plant up and running beyond normal business hours and on holidays. That is why we offer our emergency services when you need it most. We can immediately dispatch our team to come troubleshoot your issues with minimal downtime. We'll make sure you're back up and running no matter how demanding the emergency.

For 24-hour service call our main line at (909) 860-6590

New Construction

New Construction

For over 33 years we've been building for general contractors, building owners, and lead engineers. We have the team needed to finish the project on time and under budget. It is our strict preplanning before ever engaging a jobsite that keeps us at the top of our industry.

We maintain the idea that if we surpass your expectations, we will build for you again. From the beginning of the project we understand that our customers will call us for future builds because of our quality, whether its in a few weeks or a few years. That is why we aim to complete every project on time and under budget.

Engineering and Design Build

Design-build is a process by which the owner and builder work together throughout the design phase while the building phase is guided primarily by the constructor. Our engineering department carries out all design, plan-checks and preconstruction necessary to allow the owner to optimize their budget. The goal is to allow the owner to save time, save money, and be versatile with changes throughout the build phase.

By having in-house engineering, we enable our customers to have the ability to use creative solutions to their electrical challenges. Whether in the area of automation, power, or pre-construction, we work to create a solution to fit your particular needs:

  • Conceptual Budgeting
  • Value Engineering
  • CAD Drawings & Coordination
  • Construction Feasibility Analysis
  • Design Selection

Automation and Control Systems

Turnkey automated solutions and controls for conveying lines, bottling lines, robots, refrigeration systems, and batch processing are our specialty. We program our customer's Human Machine Interfaces and PLC Control Panels for a variety of applications. Some brands include:

  • Allen-Bradley
  • Controlview
  • GE Fanuc
  • Hitachi
  • IDEC
  • Mitsubishi
  • Omron
  • Square D
  • Wonderware

Inspection and Maintenance

By using the latest technology to analyze and test your facility, Diamond Bar Electric can prevent downtime and save you and your customers money. Some of the services we provide to keep you up and running:

  • Infrared Scanning
  • ARC Flash Hazard Analysis
  • Power Analysis
  • Energy Rebate Analysis
  • Electrical Equipment Testing
Inspection and Maintenance


We offer full-service, certified cabling for a wide range of low voltage systems. From basic phone systems required for day-to-day communication to complex multi-location, energy-efficient data centers, we maintain, install and service for industrial companies in a variety of frameworks.

  • Network Cabling
  • Category 3 to Category 6
  • Wireless Networks
  • Phone Systems
  • Cable Certification
  • Fiber Optics
  • Troubleshooting
  • Broadband Coaxial
  • Outdoor Cabling Solutions

UL Approved Panels

Custom control panels are designed for application-specific control modules. They are designed and built to customer specifications. These UL 508A Approved Panels are used in process control and industrial applications in a wide variety of manufacturing and engineering-only services.

Our experience in design-build of control panels includes:

  • Electrical distribution panels
  • Access control panels
  • Industrial control panels
  • Process control panels
  • Motor control panels