Van Ert Electric, Waukesha, WI 53189, US

Grunau Company designs, installs and services mechanical systems that include HVAC, plumbing, fire protection and specialized electrical systems. The company assists its clients by coming up with ways to save time, money and energy. Grunau Metals, a division of the company, offers metal fabrication services. The sister companies operate trades under one roof, enabling Grunau to offer its clients design, installation and service in systems including heating, ventilation, air conditioning, electrical, fire protection, plumbing, process piping, refrigeration, specialty metal fabrication, systems commissioning, temperature controls, test and balance services and underground utilities. Headquartered in Oak Creek, Wis., this facility serves the company s regional clients. Fire protection offices are located in Wisconsin, Florida, Indiana, Ohio and Pennsylvania. Grunau Company was established in 1920.