Welcome to


Incorporated on March 28th, 1898 the privately owned and operated Smith & Oby Company has grown into one of Ohio's most respected mechanical contractors. Throughout our storied history, our expanding services and capabilities have made us a benchmark for quality and professionalism in the construction industry.


Dedicated to expert craftsmanship and customer satisfaction, Smith & Oby has a reputation for overall performance excellence that has led to major industrial, institutional, commercial and civic projects.


By staying on the leading edge of technology and maintaining our focus on the customer's expectations, we are poised to continue our craft well into our second century. We operate efficiently and expeditiously to maintain our goal of being one of the finest turn-key mechanical services the region has to offer.


Our services include but are not limited to HVAC, plumbing, process piping, project budgeting and estimating, 3D-BIM, design/build, engineering, service & maintenance, 24/7 emergency service.