Electrical work for industrial and commercial builds, since 1983.

Five-O Electric is a licensed C-10 contractor in Antioch, California. New construction, tenant improvements, telecommunications and EV charging across Contra Costa County.

  • Prevailing wage and open shop pricing
  • Owner is a master electrician
  • Customer care that continues after the project ends
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California C-10 License 448159
Founded November 30, 1983
PG&E Trade Ally Network member

Antioch's full-service electrical contractor

Five-O Electric has been wiring buildings in Northern California since 1983. We began with wind farm installations at Altamont Pass in Tracy, moved into telecommunications, and today we are a full-service electrical contractor licensed by the State of California.

Our focus is industrial and commercial new construction and tenant improvements, and we also take on residential work and EV charger installations. Whether you are a general contractor, a business owner or a homeowner, you deal directly with an experienced team led by a master electrician.

We want to show the community the work we do and help it grow. Browse our recent projects or read our story.

Five-O Electric logo: an electrician in a hard hat and safety vest beside the company truck, with C-10 License 448159

What we do

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Electrician on a boom lift installing parking lot lights

Industrial electrical

Power distribution, equipment hookups and lighting for plants, warehouses and heavy-duty facilities.

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Scissor lift under the high bay ceiling in a new building

Commercial new construction

Complete electrical systems for new buildings, coordinated with your general contractor.

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Two wall-mounted EV chargers in a finished tenant space

Tenant improvements

Clean, on-schedule electrical build-outs for office, retail and warehouse spaces.

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Equipment cabinets and conduit at a fenced equipment site

Telecommunications

Power and pathway work for telecom sites, a core part of our business for decades.

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EV charging station next to an electric vehicle parking sign

EV charging and panel upgrades

Level 2 chargers and the panel work to support them, at homes and businesses.

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Residential electrical work on a two-story house

Residential electrical

Electrical work for homeowners across Contra Costa County.

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Electrician testing an EV charger circuit with a multimeter

EV charger installation and panel upgrades

Many panels cannot carry a Level 2 charger on top of the rest of the building. We run the load numbers first, then upgrade the panel only if it is needed, and wire and test the charger.

Five-O Electric is a member of the PG&E Trade Ally Network. Membership is not an endorsement by PG&E.

EV charging details
Five-O Electric electrician working inside an equipment enclosure

Why customers hire Five-O

Professional and dependable

We take care of business, and we have a list of satisfied customers to show for it.

Experienced, led by a master electrician

Our electricians are experienced, and the owner is a master electrician who stays involved.

Pricing that fits the job

We bid competitively on everything from prevailing wage projects to open shop work.

Support after the project

Our customers get complete customer care long after the work is finished, if they need it.

Recent work

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Five-O Electric project photo
Five-O Electric project photo
Five-O Electric project photo
Five-O Electric project photo
Five-O Electric project photo
Five-O Electric project photo

Serving Contra Costa County

We are based in Antioch and work throughout Contra Costa County, plus larger industrial and commercial projects across Northern California.

  • Antioch
  • Brentwood
  • Oakley
  • Pittsburg
  • Bay Point
  • Concord
  • Martinez
  • Pleasant Hill
  • Walnut Creek
  • Richmond
  • San Ramon
  • Danville
See our service areas

Get a quote for your project

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