Christian W.
4/3/2025
We needed boiler repair, t stat, duct tested for correct air flow. professional on time and clean! in and out straight to the point genuine service! would love to have them back for any other...
Zien Mechanical
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(8)
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2303 W Mill Rd
Milwaukee, WI 53209
Zien Service, Inc., a trusted Mechanical Contractor based in Milwaukee, WI, has been providing top-notch plumbing, heating, ventilation, air-conditioning, refrigeration, and more since 1919. With a solid reputation for excellence in Wisconsin, Northern Illinois, and Southern Minnesota, Zien offers a wide array of in-house services for commercial, industrial, and institutional systems.
Specializing in collaborative and sustainable solutions, Zien advocates for occupant comfort, improved system efficiency, reduced operational costs, and optimized client profitability. From design and engineering to maintenance and repair, Zien's team of experts ensures high-quality craftsmanship, reliability, and cutting-edge technology to meet all mechanical needs under one roof.
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Reviews
2.08 reviewsBarb S.
6/29/2023
My basement drain overflowed on a Saturday evening and I contacted Zien for emergency service. A worker came out and spent 2 hours trying to unclog the drain, but was using the WRONG EQUIPMENT....
Lillian V.
12/21/2021
One of your vehicles completely ran a red whilst speeding through Waukesha. Very unprofessional for a business van to drive so recklessly.
Robert M.
10/21/2014
One of this companies service pick-up truck's purposefully encroached on a bicyclist this morning on South Lake Drive in St. Francis. The driver positioned his truck within inches of the left...
Gina M.
8/19/2020
Cancelled or no-showed 3 different times. Did not call me either. Horrible customer service.
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