chemical plant construction
Headquartered in Toledo, Ohio
Offices in Metro Detroit, Cleveland and Columbus


Mechanical construction in chemical facilities has safety built in
when Dunbar Mechanical is on site.

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chemical facility contractingArclin/Toledo, Ohio

  • All mechanical processes for new chemical processing plant.
  • All structural steel and process piping outside limits for addition of new formaldehyde plant.
  • Miscellaneous utility and process piping, and equipment installation.

BASF/Whitehouse, Ohio

  • Installed 4 environmental spray booth systems in operational facility.
  • Designed, fabricated and installed exhaust hoods for test booths.
  • HVAC for test laboratory.
  • HVAC and plumbing for new research and training center.
  • Installation of state-of-the-art DeVilbiss paint booths.
  • Design/build resin lab air quality improvement.
  • Flammable storage exhaust system.
  • Chiller installation.
  • Spray booth makeup air.

BETCO/Bowling Green, OH  

Dunbar was the prime mechanical contractor for this plant relocation and expansion project.  The project included brand new processes in a newly acquired building, expansion of that facility, and moving/consolidation of existing processes from other facilities.  Dunbar’s scope included:
  • Installation of tanks with load cells.
  • Installation of reactor vessels and raw and finished product tanks.
  • Complete fabrication and installation of mechanical rooms.
  • Fabrication and installation of:
  • Product lines to work-in-process tanks
  • Supply headers and distribution manifolds
  • Pigging systems
  • Distribution piping – raw material to storage and mix tanks.
  • Final fill lines.
  • Relocated and integrated process equipment from former plants
  • Plant HVAC

Coshocton Ethanol/Coshocton, OH  

  • As a result of our work for Global Ethanol, Dunbar was awarded the contract to fabricate 18 pipe rack modules, transport and erect them.

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Global Ethanol/Blissfield, MI

Dunbar's role evolved from lead piping contractor to performance partner / preferred vendor through the course of this complicated project. Installing all piping (nearly 3 miles worth!), tanks, and equipment in the main process building was just the beginning. Dunbar's performance exceeded expectations -- to the point that we completed modifications to parts of the project begun by other mechanical contractors. Work continues beyond the scope of the original project as we are members of the ongoing maintenance team.


Fiske Brothers Refinery/ Toledo, Ohio

  • Piping for 20 new raw material storage tanks.
  • Installation of new chemical blending process.
  • Numerous additional process efficiency and safety projects.


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Spartan Chemical/Toledo, Ohio

  • Construction of new plant
  • Relocation of portions of existing process to new facility.
  • Integration of new and old process.


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Dunbar Mechanical continues to have our customers’ needs in mind and strives to provide best of class service. We are not simply a specialty contractor, we are your contractor. Contact the experienced professionals at Dunbar Mechanical for all of your mechanical contracting needs in northern Ohio and Michigan. Call Don Yerks, Director of Marketing today at 419-537-1900 ext. 242 or email We look forward to working with you soon.


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