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Owners Robert W. Casey and Diane Casey have been doing business in the Construction Industry since 1978. Growing from a very successful landscaping business into a multiple discipline general engineering and construction company. Robert Casey first established RWC Enterprises, Inc. which led the way for Professional Electrical Construction Services, Inc.

Backed by over 30 year of experience, Professional Electrical Construction Services, Inc. specializes in but not limited to Electrical Utility Industry projects. PECS has the capabilities to undertake and deliver complex and highly demanding civil and electrical projects without sacrificing the quality of our work.

We have access wide range of heavy equipment from small skid steer loaders, small and large excavators, and drill rigs for small to large pile foundations for substation and transmission line projects.

We maintain full crews of electricians, wiremen, structural builders, equipment operators, and skilled laborers with the ability to take on any size job in the below grade installations to above grade steel structures and conductoring.

It is our principle objective to achieve the expectation set by our customers, by providing services which consistently exceed the defined needs set forth by our clients and utility industry.

Professional Electrical Construction Services, Inc. specializes in the construction and maintenance of turn-key substation projects. We can provide excellent and quality work whether your project is a new installation, an upgrade or a retrofit. We take pride in our record of quality, efficiency and safety.

-Turn-key Substation Construction
-Grading and Excavation Services
-Underground work and Foundation Installations
-High Voltage Structure erection
-Power, Secondary and Control Wiring
-Drilling Services for Transmission Line Tower Foundations, Wells, Ground Wells
-24/7 Emergency Storm Damage Response
-Project Management


Our Construction Division has been the top performing contractor for Southern California Edison for many years. This division specializes in low voltage and high voltage substation construction and can take on any type construction from installation of below ground conduit, grounding, structural foundations, building foundations and the construction of Tower Line foundations. We are highly skilled in demolition, concrete placement, drilling pile foundations and ground wells, grading and excavation, site drainage and SWPPP services.


Our Electrical and Wiring Division have also been top performers for Southern California Edison for many years. This division installs a wide range of substation equipment and wires equipment in preparation and support of Testing and Startup. We also install large steel structures, line and bus dead ends, turning poles, line raisers and build switch racks from 12kv to 500kv. Switch racks include steel erection, installation of switches and hard bus, conductoring switches and equipment, installation of circuit breakers, station light and power and other equipment required to provide reliable service.

Wiring crews perform conductor jobs for equipment and relay control wiring, installation or relays and control equipment in control rooms and relay cubicles in the field.

Sothern California Edison Company PG&E
PAR Electric Company Kiewit Construction Henkels & McCoy Bechtel Corporation Beta Engineering Reliant Energy
Flour Engineering Construction LADWP
Cal Tech/U.S. Geological Survey City of Anaheim, CA
City of Banning, CA
City of Colton, CA
City of Palm Springs, CA
City of Rancho Cucamonga, CA City of Riverside, CA
City of San Dimas
City of Santa Barbara
El Monte Police Department Temple City Sherriff Department Disneyland Resort Anaheim, CA Knott’s Berry Farms
LA Dodgers Stadium
Anaheim Angels Stadium
Candle Stick Park Stadium
U.S. Postal Service​