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At Guarantee Electrical Company, our people make us strong, and our experience guarantees our work.  Consistently ranked among the top electrical contractors in the country, we offer more than a century of expertise in electrical engineering, preconstruction, construction, design-build, communications/data systems, and service & maintenance.  Every member of our employee-owned firm is empowered and motivated to provide excellent service and legendary innovation locally and nationally.
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When the new $130.5 million, 200,000-square-foot expansion at the Saint Louis Art Museum opens in early 2013, it will boast...

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Granite City IL
Denver CO
Benicia CA
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