Guarantee Electrical

Founded in 1902 to electrify the 1904 World's Fair St. Louis, Guarantee Electrical Company is among the oldest electrical contracting firms in the United States. Consistently ranked among the top electrical contractors in the country, Guarantee has expertise in electrical engineering, electrical preconstruction, electrical construction, design-build/design-assist, communications, data, security and life-safety systems and 24/7 emergency and service quick-response.