Headquartered in Toledo, Ohio
Offices in Metro Detroit, Cleveland and Columbus



The Andersons Corporate Headquarters


Dunbar Mechanical served as the plumbing contractor on The Andersons Corporate Headquarters project.

Aquarium Renovation at The Toledo Zoo

Originally opened in 1939, the Aquarium building at the Toledo Zoo is a W.P.A. (Works Progress Administration) era building.

On October 2, 2012 the Aquarium closed its doors to the public and construction began on a completely new interior with Dunbar Mechanical selected to build and install the most difficult of the construction requirements - the Life Support Systems. While

the exterior of the building remains basically unchanged, Dunbar also reinforced the structure and provided support for the many changes inside as the structural steel contractor. The chart below shows how the interior was transformed for the

March 27, 2015 re-opening:

The tropical saltwater drum filters are removed from the semi for installation. They were moved through an overhead door into the building. Once inside the Aquarium, the filters were carefully rigged for setting in place within the saltwater filtering tank.
With respect for the historical structure, Dunbar's careful planning ensured minimal structural alterations were made. Each saltwater drum filter was carefully delivered through the customized opening.
Once inside the area, Dunbar's professionals moved each tank into its proper position which were prepared and piped ahead of time. Here, all three filters are shown in place and ready for final piping..

Jay Hemdal is the Curator of Fishes and Invertebrates for the Toledo Zoo. He shared insights of the Aquarium Renovation in the Saltwater Smarts blog. As the Life-Support Systems prime mechanical contractor, Dunbar is especially excited to see Jay's insights on critical issues like the chilling systems we completed which are noted in Update 10: Cold Water Marine Exhibits:

Special chilling systems connected to heat exchangers are required to lower the water temperature of these exhibits to a suitable range (in this case, 48 to 54 degrees Fahrenheit). An emergency back-up generator supplies electrical power to the entire building, as all of the life-support systems (including these chillers) must remain operational at all times.

Click on Infographic to view larger (.pdf file)

Dunbar is proud to serve our commercial clients who include:

  • The Andersons - New Corporate Headquarters
  • Best Buy
  • C-International
  • Champion Windows
  • Fresenius
  • Hensville
  • Huntington National Bank
  • Inverness Club
  • KeyBank
  • M & M Restaurant Supply
  • Ohio Building Company
  • USF Holland
  • Westfield Franklin Park Shopping Center
  • Westgate Shopping Center
  • The Wall Street Journal
  • WUPW Channel 36
  • and more…



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Westfield Franklin Park Shopping Center / Toledo, Ohio
Dunbar Mechanical was a leading contractor on the addition to this major regional mall.  Dunbar performed the following:

  • Design/Build snow melt system for parking garages. Click here to learn more about this project
  • Plumbing for mall addition
  • Plumbing for two new parking garages
  • Tenant Finishes:
    • Auntie Anne's - Plumbing
    • Borders Bookstore -  HVAC and plumbing
    • Champps Restaurant – Plumbing
    • Dick’s Sporting Goods – Plumbing for two-story store
    • GAP - Plumbing
    • Williams Sonoma – Plumbing
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Dunbar Mechanical, Inc. does new construction, renovation and remodeling, preventive maintenance and emergency repairs for many educational institutions in both Ohio and Michigan. We are proud of the trust these schools place in Dunbar and work diligently to make the learning environment as comfortable as possible.

  • Buckeye Local Schools
  • Bowling Green State University
  • Elmwood Local Schools
  • Evergreen Local Schools
  • Hastings Area School System
  • National Heritage Academy
  • Monclova Christian Academy
  • Notre Dame Academy
  • Perrysburg Schools
  • Port Clinton Public Schools
  • St. John’s Jesuit High School
  • St. Ursula Academy
  • Sisters of Notre Dame
  • Springfield Local Schools
  • Sylvania Public Schools
  • The University of Toledo
  • Vermillion Public Schools
  • Washington Local Schools
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Napoleon Schools/Ohio

Dunbar Mechanical was part of a Design/Build team led by Chevron Energy Solutions to update mechanical equipment and improve energy efficiency. Students enjoy a more comfortable environment with a lessoned impact on the environment.


Hull Prairie Intermediate School - Perrysburg Schools / Perrysburg, Ohio

Dunbar Mechanical provided the plumbing and HVAC construction services on this new facility.


The University of Toledo / Toledo, Ohio

Bancroft Campus

  • institutional projectsRecreation Center - Dunbar Mechanical completed the new swimming pool addition at the University. This project included plumbing installations for all of the locker rooms and restrooms. Dunbar was also responsible for installing all A.O. Smith red-tread and green-tread fiberglass reinforced plastic piping. A slide was also installed. Dunbar also installed some piping in a tunnel under the pool deck.

  • Powerhouse - Dunbar performs many smaller projects at
    the powerhouse:
    • Steam and condensate piping repair work
    • Replacement and miscellaneous repairs of chiller pumps
    • Miscellaneous repair projects

  • Engineering Building - Dunbar was involved in the renovation and addition of the engineering building. Innovative fabrication methods were used to accelerate our portion of the project. Dunbar was entirely responsible for the plumbing including bathroom and laboratories. Dunbar also installed acid waste systems in the labs. This project required working in confined space.

  • Dunbar also is a contract maintenance provider doing miscellaneous HVAC, plumbing, and piping repairs and modifications in buildings throughout the campus.

  • Savage Arena- Dunbar was involved in the modernization and renovation of this facility installing the underground fuel oil storage tank and associated piping.

institutional projectsHealth Science Campus

  • Interprofessional Immersive Simulation Center (IISC)
    Dunbar served as the Prime Mechanical contractor on this 64,000 square foot facility housing world-class technology that is transforming the way healthcare practitioners are educated. On schedule for LEED Silver Certification, mechanical work was highlighted in the rainwater harvest and sanitizing system.

  • Dunbar performs miscellaneous small maintenance projects and emergency repairs at the former Medical University of Ohio Campus.  Projects include HVAC, plumbing, medical gases, piping, and rigging
    work in:
    • Medical procedure areas
    • Classrooms
    • Labs
    • Offices
    • Powerhouse
  • Capital projects include:
    • Classroom upgrades
    • Lab renovation
    • Powerhouse stack replacement and ash silo installation
    • Center for Creative Education

  • A challenging project at this campus involved the replacement of an HVAC Heat Recovery System in the Health Engineering Building. Dunbar was responsible for the installation of this new system under an accelerated schedule in extremely tight space in a fourth floor penthouse without losing control of the building’s environment at any time. This system uses two separate recovery systems, each coupled with two exhaust air handling systems. Additionally, a water heating system, which includes a water heat exchanger, a pressure reducing station, pumps, expansion tanks, an air separator and hot water heating coils, was also the responsibility of Dunbar.

St. Johns Jesuit High School / Toledo, Ohio

Dunbar Mechanical has completed several design/build projects at this institution.  These projects include: Boiler replacement, chiller replacement, HVAC for the Chapel renovation, domestic water heater replacement and a common area addition.


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institutional projectsGovernment work demands special attention to documentation.  Dunbar Mechanical performs both the actual work and the paperwork to our governmental clients exacting requirements. Clents include:

  • City of Toledo, Ohio
  • London Correctional Institution
  • Lucas County, Ohio
  • Milan Federal Prisons
  • Ohio Building Authority
  • Wood County Justice Center
  • Wood County, Ohio - Wood Haven Health Care



institutional projectsServing the faith community in both Service and construction is an honor for Dunbar Mechanical. Some of our religious clients include:

  • Aldersgate United Methodist Church
  • Monclova Road Baptist Church
  • Sisters of Notre Dame
  • St. Martin DePorres Parish
  • Trinity Episcopal Church

Trinity Episcopal Church / Toledo, Ohio

Renovation of a downtown church built in 1842.  Dunbar’s involvement in this historic, award-winning project included the transformation of the mechanical system which was tucked into hidden chases and basement spaces in this pre-Civil War structure.  Dunbar also installed the intricate complete-immersion baptismal font.

Sisters of Notre Dame / Toledo, Ohio

Dunbar Mechanical has been involved in the major renovations on the Provincial and Novitiate House. These projects were completed in two phases, and included a complete renovation of all plumbing/HVAC lines. This project was scheduled and performed with complete sensitivity to the needs of the Sisters and students, and was scheduled as to not disrupt daily operations.  Dunbar continues to perform miscellaneous projects for both the schools and residences.  


Dunbar is proud to support our community and gladly serves many institutional
clients including:

  • Glacier Hills Retirement Community
  • The Toledo Museum of Art
  • Toledo Zoo
  • YWCA

The Toledo Museum of Art

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Dunbar Mechanical's expertise helped to create the Toledo Museum of Art Glass Pavilion - click here to learn about Dunbar's work on this world-reknown project.





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Nature's Neighborhood at The Toledo Zoo

Nature’s Neighborhood is a complete re-imagining of what a children’s zoo can be and Dunbar Mechanical helped with the highlight of the exhibit -- a running stream where kids take off their shoes and enjoy the world of water. The stream was such a hit when Nature's Neighborhood opened that within three weeks Dunbar was called back to expand the filtration system to handle the much higher than expected level of use. For more details and client comments click here!

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Dunbar Mechanical continues to have our customers’ needs in mind and strives to provide best of class service. Dunbar Mechanical is more than 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 throughout Michigan. Call Don Yerks, Director of Marketing today at 419-537-1900 ext. 242 or email info@dunbarmechanical.com. We look forward to working with you soon.


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