
Service you can trust.
Since Sebastian emerged into the construction market, we have been a leader in electrical, low voltage, and underground contracting. We serve various markets and are subject-matter experts in the following industries and services.
Electricity made simple.
With over 70 years of construction experience on a variety of commercial and public works projects, we have expertise in every facet of electrical construction, maintenance, and service.
LIGHTING/POWER
LED UPGRADES
24/7 ELECTRICAL SERVICE
CIRCUIT BREAKER/PANELS
PREVENTATIVE MAINTENANCE
SWITCHES/OUTLETS
INSTALL/REPAIR
SERVICE AGREEMENTS

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.
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Conventional Rod Boring
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Directional Boring
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Machine Trenching
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CATV/Telephone Drop Burials
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Complete Engineering Services
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Traffic Signalization/Street Lighting
Secured by Sebastian.
We provide you commercial and residential options to keep you connected and secured. Our in-house IT team provides helpdesk support 24/7 for all your Sebastian managed services. We can design and customize all audio/video, communications, security, and IT solutions for your business.
Keep an eye on your business at all times.
Utilize our CCTV, fire/burglar alarms, access control, and a variety of other systems to ensure the safety of your employees and building.
We handle the technology so you don't have to.
We are a managed service provider, meaning we can provide in-house IT support for your business amongst other IT products and services.
Custom built A/V solutions for your needs.
Our video conferencing, board room systems, and integrated control systems are all custom designed to fit your needs.
Stay in touch with those who matter most.
Our phone systems, high speed internet, service plans, and other communications services are designed to keep your home and business connected.
Meet our satisfied clients.
We pride ourselves on the quality of our work and our clients can attest to it.
View some of the testimonies from our valued clients below.

Josh Lipschitz
System Administrator, OK Produce
Bryan Hahn
Mechanic IA, Baltimore Air Coil
Christine Miktarian
Vice Chancellor of Operations, State Center Community College District
Pedro Nunez
Associate Engineer/Public Works Inspector, City of Delano
Leo Rodriguez
Project Engineer, Pickett and Sons
Annette Leon
Property Manager Supervisor, Kings View Apartments