Hermiller Engineering Service, LLC
7898 Road O
Ottawa, OH 45875
(419) 796-1287
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About Hermiller Engineering Service, LLC
Hermiller Engineering Service, LLC was founded in 2002 and is certified in the State of Ohio to provide professional services of Engineering by the State Board of Professional Engineers and Surveyors (Certificate of Authorization No. 03487).

T. Joseph (Joe) Hermiller, P.E. is the sole proprietor of Hermiller Engineering Service, LLC. Joe has a BSME degree from Ohio Northern University and has over 35 years of experience in plant and facilities engineering. 

Joe retired from Ohio Northern Universiy in August 2010 after 20 years of service to the University. He had served the University as the Director of Physical Plant and most recently as the Director of Facilities Planning and Construction.  He has a wide range of experience in facilities engineering and maintenance, including new construction, builiding renovations and alterations, HVAC system installations and upgrades, energy conservation projects, and site utility installations and improvements.