Where we work

Based in Antioch, serving Contra Costa County and projects across Northern California.

Contra Costa County

Most of our customers are residential, commercial and industrial property owners and contractors in Contra Costa County.

We also take on larger industrial and commercial projects elsewhere in Northern California.

Not sure whether we cover your location? Call (925) 234-0647 and we will tell you.

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Cities we serve

East County (our home base)

Antioch is where Five-O Electric is based, so projects here and in the neighboring towns are closest to home.

  • Antioch
  • Brentwood
  • Oakley
  • Pittsburg
  • Bay Point

Central County

Commercial and industrial new construction, tenant improvements and residential work.

  • Concord
  • Martinez
  • Pleasant Hill
  • Walnut Creek

West County

Commercial and industrial projects on the western side of the county.

  • Richmond

San Ramon Valley

Commercial properties, offices and homes in the southern part of the county.

  • San Ramon
  • Danville

The work we do across the county

Industrial and commercial

New construction and tenant improvements for plants, warehouses, offices and retail. Learn more

Telecommunications

Power and pathway work for telecom sites, a field we have worked in for decades. Learn more

EV charging and residential

Charger installs, panel upgrades and home electrical work. Learn more

Based in Antioch

Our office is in Antioch, California, on the eastern side of Contra Costa County. Call during business hours, 7 am to 5 pm, or send the form below and we will get back to you.

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