Building it better, from the ground up.

Sebastian is a full service, integrated electrical and communications contractor. Our expertise ranges from joint trench and underground, to communications and complete infrastructure. We build comprehensive projects and platforms whether our team is internal or we coordinate with other vital contractors in the Sebastian network.

Designing a project?

Let us be a part of it. Our in-house experts can design and build project specifications within our standard scope of work. Contact us today so we can prepare and submit a bid for your project.


Pre-construction services

Our team is competent in the full spectrum of design and implementation of the most advanced systems. Through our thorough pre-construction process, we eliminate risk and increased costs in all projects.





Electrical infrastructure

Through careful project management, we’re able to keep your project on schedule and on budget without compromising quality. With over 75 years of experience on a variety of commercial and public works projects, we have expertise in every face of electrical construction, maintenance, and service. We also understand the paperwork and zoning requirements of large-scale school and governmental projects.

Underground construction experts.

Sebastian specializes in the engineering, construction, and maintenance of advanced copper and fiber optic networks and complex electrical installations. Our experienced, certified engineers (PE and RCDD) have worked on some the most challenging job sites, from rural mountain communities to busy metropolitan intersections. We’re well equipped to deliver your cables and conduit wherever they need to be.

  • Conventional Rod Boring

  • Directional Boring

  • Machine Trenching

  • CATV/Telephone Drop Burials

  • Complete Engineering Services

  • Traffic Signalization/Street Lighting


The Forum at Rancho San Antonio

The Forum is a senior living facility in Cupertino with over 52 acres of land and 23 residential villas. Sebastian is assisting on this project with all of the electrical, underground and power distribution for one of the new buildings. With the help of West Coast Cranes, we were able to drop in the generator so we can start tying in all electrical systems. 

Services Performed: Electrical, Power Distribution, Underground

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Celebrating 75 years in business! We are proud to provide a great place to work and support the community in which we live and work.