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Guarantee Electrical Company - Top Electrical Contractor in Missouri, Illinois and Colorado

About Us

Electrical Contracting Exceeding Customer Expectations

24 Hour Electrical Service

Founded in 1902 by a coalition of entrepreneurs who “guaranteed” to light the 1904 World’s Fair, Guarantee Electrical Company has grown from a single office in St. Louis, Missouri to an established specialty contractor with regional strength. Guarantee Electrical Company's team of  engineers, project managers, IBEW craft workers and office staff provide a complete spectrum of electrical services for our Missouri, Illinois, Colorado and California clients.  Our goal always is to exceed our clients' requirements and expectations. 

In addition to our four branch offices, as a founding member of the Federated Electrical Contractors (FEC) best practices network, we are able to provide an additional level of service by partnering with peer electrical contractors on projects across North America. 

Engineering News-Record consistently ranks Guarantee Electrical Company among the top specialty contractors in the United States. We serve our customers nationwide with the best in class preconstruction services including licensed electrical engineering, electrical design, design/build, and design/assist.  

Small Photo: Centene Corporate Offices - St. Louis, MO