Wm. T. Spaeder Company is built on genuine entrepreneurship, quality craftsmanship, and a deep-rooted commitment to the community. From industrial and waste-water systems to building construction and fabrication services, we strive to seamlessly blend traditional mechanical contracting techniques with cutting-edge BIM technologies to ensure we meet—and exceed—the individualized needs of all our clients. Industry Leaders in Erie, PA and Beyond Founder, William T. Spaeder, launched the business back in 1914 in Erie, PA. As a result of decades of hard work, our grassroots, family-owned and operated company has earned a reputation for world-class institutional and mechanical contracting services, as well as exceptional customer service. Today Wm. T. Spaeder has expanded to serve our customers in: Erie Pittsburgh Buffalo But our expansion doesn’t merely include new locations; we’re implementing LEED Certified materials and installation techniques to ensure field productivity, enhanced quality-standards, and top-rated customer satisfaction. Wm. T. Spaeder has diversified our solutions in our traditional and emerging markets.