Zien Mechanical has been a trusted name in mechanical contracting since 1919. With a commitment to excellence, we offer a wide range of services including plumbing, heating, ventilation, air conditioning, building automation systems, refrigeration, fire protection, process piping, and sheet metal work. At Zien, our goal is to build lasting relationships with our customers by providing effective solutions and reliable service.

Our team is dedicated to understanding your needs and delivering on our promises. We work hard to ensure nothing is lost in translation, going the extra mile to meet any special requirements. Founded as a small storefront in Shorewood, Wisconsin, Zien Plumbing has grown into one of Milwaukee's largest and most trustworthy mechanical contractors.

Today, our headquarters in Glendale spans 40,000 square feet, reflecting our commitment to excellence and reliability. We pride ourselves on our integrity and the ability to do the right thing, even when no one is watching. When you choose Zien Mechanical, you can expect the highest quality services at competitive prices.

Contact us today to experience the Zien difference for yourself