Located in Greenville, WI, Great Lakes Mechanical is a full service Mechanical Contractor specializing in design, fabrication and installation of dust collection systems, ducting, tanks, custom structural, process, piping and HVAC. GLM is a highly mobile organization, blending in-facility fabrication with field installation by exceptionally experienced personnel.

Our capabilities continue to exceed the high quality standards demanded by the power, metal casting, food, petro-chemical, process, agri-chemical, new and retrofitted hydraulic presses, industrial gas, chemical, waste, pulp and paper industries.


Great Lakes Mechanical offers a broad array of services for which we are licensed and experienced. We have successfully completed projects ranging from industrial piping fabrication and installation to turbine generator installation in power generation facilities. Some of our areas of expertise are listed below, and if you don't find what you are seeking there, give us a call to discuss your specific project requirements.

Tank & Pressure Vessel Fabrication

The Pressure Vessels and Tanks at Great Lakes Mechanical are designed for any material or specifications. They ar...

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Ventilation & Collection

The ventilation systems at Great Lakes Mechanical are efficiently conducted passages, which supply air, return air and exhaust air between a facilities work pla...

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GL Mechanical Process Piping

Process Piping And Instrumentation

The process piping systems at Great Lakes Mechanical are elaborately detailed through the spooling, breakpoints, and splits acorn pipe draw-ups. The piping... 

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Platforms, Ladders, Specialty Fabrication & Installation

The engineering behind Great Lakes Mechanical’s service platforms allow easy personal access and maneuvers in and around facility infrastructure...

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Solid Works, Flow Simulation and CAD

In-house Solid Works and CAD gives Great Lakes Mechanical the flexibility to streamline your project from design to fabrication and installation...

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Structural Fabrication & Installation

Great Lakes structural fabrication provides cut, bent, assembled and installed specifically to the client’s needs. Depending on specific application Great Lakes wi...

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The Heating Ventilation and Air Conditioning systems that Great Lakes Mechanical provides regulate and circulate air. With the arrangement of fans...

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