When your complex plumbing systems sprawl across a large campus or climb multiple stories, Harder delivers the safety, quality, and performance your project demands.

Sophisticated Plumbing Solutions

Large-scale plumbing systems can get complicated quickly. The last thing you want is a plumbing install that holds up other trade craft. We deploy proven processes that leverage prefabrication and modularization, so you can be confident that a quality plumbing system will be installed safely.

Harder was founded as a plumbing contractor over eighty years ago. We have turned our heritage into industry-leading plumbing system installations.


Achieving Results

Backed by over eighty years of proven results, Harder Mechanical has the right people, capabilities, and resources to meet your largest and most complex projects.
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Safety is at the heart of quality and performance. Our customers trust us to manage safe and successful projects.
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