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Founded in 1902, Guarantee Electrical first showed the world what electricity could do by illuminating the 1904 World’s Fair, and then “guaranteeing” that it would work when electrification was in its infancy. Today, we continue to build on our legacy as a national leader in electrical engineering, preconstruction, construction, technology and project management.

With four offices located throughout the country, Guarantee Electrical Company has the capability to meet any owner or contractors project demands.  

As a member of the Federated Electrical Contractors (FEC) best practices network, we provide another level of commitment by partnering with other electrical contractors across the country and North America.  FEC is an international network of leading electrical contractors dedicated to safely providing our customers with the highest quality electrical and building management systems at competitive pricing, regardless of geographic location.

Benicia, California
P.O. Box 1365
Benicia, California 94510
Phone: 303.373.2400