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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 has the capability to meet any owner or contractors project demands.  As a member of the Federated Electrical Contractors (FEC), Guarantee provides another level of commitment by partnering with other electrical contractors.  

FEC is an international network of leading electrical contractors dedicated to safely providing our customers with the highest quality electrical and datacom services at competitive pricing, regardless of geographical location.

***The map below depicts the four Guarantee branch offices as indicated by the "G".  The remaining pins represent FEC partners in other areas.  FEC has changed the landscape of electrical contracting, creating a joint-venture network which brings leading electrical contractors together whenever and wherever special resources are needed.  FEC joint ventures have proven themselves again and again on challenging products for many of the world's leading companies, large and small.

Federated Electrical Contractors




Benicia, California
P.O. Box 1365
Benicia, California 94510
Phone: 707.745.7445
Copyright 2017 by Guarantee Electrical Company