Zien Mechanical: Glendale WI's Trusted Commercial Mechanical Contractor

For nearly a century, Zien Mechanical has been a cornerstone of the Milwaukee area's commercial and industrial infrastructure. Based in Glendale WI, this family-owned company provides essential plumbing, HVAC, and building automation services to businesses and institutions across Southeastern Wisconsin and Northern Illinois. With 24/7 emergency service and a deep commitment to integrity, Zien Mechanical keeps facilities running smoothly through every season.

Business Overview

Zien Mechanical in Glendale WI focuses exclusively on commercial, industrial, and institutional clients. They do not offer residential HVAC services. Their team of skilled technicians and project managers is available around the clock, every day of the year, for urgent repairs. This ensures that a hospital, school, or manufacturing plant never has to shut down due to a mechanical failure. From their 50,000-square-foot headquarters, they manage projects large and small with precision.

Key Services

The company's expertise covers the full spectrum of mechanical systems for buildings. Their main service groups include:

• Plumbing & Process Piping: Inspection, installation, and repair of complex plumbing systems for large facilities.
• Heating, Ventilation & Air Conditioning (HVAC): Design, installation, and maintenance of commercial climate control systems.
• Refrigeration & Building Automation: Specialized cooling systems and smart controls that manage energy use and comfort.

Areas Served

Zien Mechanical serves a vast region from its Glendale base. Their service area includes Milwaukee County, Waukesha, Racine, Washington, Ozaukee, and Walworth counties in Wisconsin. They also extend into Northern Illinois communities like Richmond and Lake Catherine. Key cities they regularly work in are Brookfield, Wauwatosa, Menomonee Falls, Oak Creek, Germantown, Cedarburg, and West Bend.

Company History

The story began 99 years ago with a small 900-square-foot storefront in Shorewood. That humble plumbing and heating shop was the foundation. Today, Zien Mechanical operates from its modern Glendale WI facility, having grown into one of Milwaukee's largest mechanical contractors. Through all that growth, the core values of quality work and fair dealing have never changed. The mission remains simple: provide the highest quality services at competitive prices with unmatched integrity.

Leadership & Local Presence

As a family-owned and operated business, leadership is hands-on and deeply connected to the community. The owners and managers have decades of combined experience in the Wisconsin mechanical trades. They understand the specific demands of local industries and the challenges posed by the region's climate—from humid summers to freezing winters. Their involvement goes beyond projects; they are invested in the long-term success of the area's businesses and institutions.

Specialties & Highlights

What makes Zien Mechanical stand out?

• Commercial & Industrial Focus: They specialize in the complex systems that large buildings need.
• True 24/7 Emergency Response: Help is always available, day or night, weekends and holidays.
• Nearly a Century of Experience: 99 years of adapting and excelling in the mechanical field.
• In-House Expertise: Capabilities span from plumbing and HVAC to advanced building automation and process piping.
• Major Local Contractor: A go-to resource for some of the area's most critical facilities.

Why Locals Choose Zien Mechanical

Business managers and facility directors across the region turn to Zien Mechanical in Glendale WI for reliability. They trust a name that has been part of the local landscape for generations. The choice comes down to proven quality, a straightforward approach to business, and the peace of mind that comes with a contractor who answers the phone at 3 AM. For commercial mechanical needs, the longstanding reputation of Zien Mechanical speaks for itself.