Sponsor Spotlight: Guarantee Electrical
Posted by [email protected] on Nov. 20, 2025 / Subscribe 0
Guarantee Electrical is a 100% employee-owned firm with a strong and growing presence across the country, including St. Louis, MO; Bloomsdale, MO; Granite City, IL; Denver, CO; Colorado Springs, CO; and Benicia, CA. As a trusted partner for turnkey electrical construction, system integration, and rapid-response contracting, Guarantee brings more than a century of expertise to every project. Their team is known for pairing technical excellence with genuine collaboration—delivering solutions that power communities while strengthening relationships.
What truly sets Guarantee apart is its people-first culture. As owners, every employee has a personal stake in the company’s success, which shows in the care, craftsmanship, and commitment they bring to every job. From complex, mission-critical environments to community-defining facilities, their work reflects a deep dedication to innovation, reliability, and service.
Notable Projects
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USDA Food Safety and Inspection Service – Midwestern Laboratory
Guarantee delivered advanced security infrastructure, nine specialized freezers and coolers, extensive data storage, and backup power systems. Their installation included 1,800 data drops across seven labs and a 1,500KW generator with eight automatic transfer switches. -
Siteman Cancer Center (Gary Werth Cancer Center at Washington University)
Guarantee completed the full electrical and low-voltage scope, including redundant power, fiber optic networks, complex switchgear, and data systems. The result is a state-of-the-art facility now serving 70,000 patients per year—completed despite pandemic-driven delays and an accelerated schedule.
Why They Support SMPS St. Louis
Guarantee proudly supports SMPS St. Louis because of the value the organization brings to their marketing team—through education, networking, and professional development opportunities that strengthen both people and business strategies.
Advice for Emerging AEC Professionals
If the AEC industry is your passion, Guarantee encourages you to embrace every opportunity SMPS offers—events, conferences, volunteering, and networking. The connections and knowledge you gain will shape your career alongside some of the best professionals in the industry.
The Spirit of Guarantee
Guarantee’s culture is defined by authentic storytelling and consistent delivery. Their teams speak as collaborative partners—never as a corporate entity—bringing positive energy, empathy, and transparency to every interaction. They don’t “sell”; they provide solutions that power communities and support people.
Additional Recognition
Guarantee is proud to be the recent recipient of the AGC of Missouri Keystone Awards, earning Subcontractor of the Year – Electrical and Project of the Year for both the Siteman Cancer Center and USDA Midwestern Laboratory.
Thank you Guarantee Electric for supporting SMPS St. Louis as a Platinum Sponsor!
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