David Losak

David Losak serves as Senior Project Manager of Construction at Donnelly Mechanical. In this capacity, he oversees all aspects of Donnelly’s HVAC construction services, including installation, startup, balancing, commissioning and warehouse and delivery operations.

A proud member of our 10+ Year Employee Club, Mr. Losak has been with Donnelly Mechanical since 1997 and has over 35 years of industry experience, including 14 years of steam fitting experience. He is a member of the Refrigeration Service Engineer’s Society and holds numerous certifications.