D G  K o c h  A s s o c i a t e s

About DG Koch Associates

Our energetic and dynamic firm was founded in 2006 and is headed by Donald G. Koch, P.E.  With over 40 years’ experience in the industry, Mr. Koch provided mechanical and plumbing systems for high-rise, hotels, gaming facilities, restaurants, theaters, conference centers, schools, health care, office buildings, local and state government buildings, retail and light industrial spaces.
In 2015, John M. DeSalvo joined the DGKA Team as Director.  His many years of experience as an electrical contractor, design/build Vice President, and Mechanical & Electrical engineering firm owner, established DGKA's Electrical department providing consulting and engineering assistance. 
Also during 2015, DGKA brought on Nathan G. Quigley as their Principal P.E. for the electrical department.  In addition to Nathan, DGKA acquired the MEP department of a local engineering firm increasing their market presence, clients, and staff.

​Along with the acquisition, Roger Shearrow joined the DGKA team overseeing the Chandler, Arizona office. Roger manages the team as Principal Mechanical Engineer.  Our Arizona staff is dedicated to providing Mechanical, Electrical, and Plumbing engineering primarily to the Arizona market.

​We use effective systems with proven results.  We are aware of construction trends, and we consider our client’s goals in selecting HVAC, Electrical, and Plumbing systems.  Our experienced principals and staff are capable of making responsible decisions.  We take pride in client communication, the appearance of our drawings, and the quality of our work. We successfully maintain long-term relationships by providing our clients with excellence driving our efforts with every project.