Koch Mechanical is proud to be affiliated with Dave O’Mara Contractor, Inc.


Dave O’Mara Contractor, Inc. is Southeastern Indiana's largest and best-known contractor. Dave O'Mara specializes in asphalt paving, heavy highway construction, earthwork, underground utilities, concrete, mechanical systems, (Koch Mechanical, Inc.), water and waste treatment facilities and bridges.

Dave O'Mara Contractor, Inc.

Welcome to Koch Mechanical

Koch Mechanical, Inc. is a commercial plumbing and HVAC company that was established in 1989. Our mechanical expertise however, spans 30 years beginning in 1976 by our affiliation with Dave O’Mara Contractor, Inc. We continue to this day with Koch Mechanical, Inc. providing a full complement of plumbing, mechanical, and HVAC services to the commercial building industry.