David W. Langhamer
PMP, LEED, AP, Founding Principal

Dave Langhamer was born on the South Side of Chicago and is a lifelong resident. He worked his way through college as a Union Laborer working on High Rise and the Deep Tunnel projects, while earning his degree at the University of Illinois at Chicago. Dave continued his Post Graduate education at Villanova University. He was able to learn the construction business very early from the ground up. Dave’s background has enabled him to manage over a Billion Dollars of construction projects throughout his career including Base Building, Corporate Interiors and Data Center projects. He was previously the Executive Vice President and one of the founding partners of another construction firm in Chicago. Dave decided to open DW Hammer, LLC with the goal of using his experience, knowledge and skills to improve the way that projects are delivered. Dave and his team have been able to challenge the status quo and incorporate innovative and creative ways to service clients in a modern way by blending technology with common sense and practical knowledge. He has mentored several individuals that have gone on to become leaders in the Chicago Construction Industry. Dave is continuing to source and develop new talent at DW Hammer and takes pride in creating a positive atmosphere for these individuals to flourish. He also takes great pride in providing excellent service to his clients and creating long-term relationships. Dave holds the credentials of LEED AP and PMP (Project Management Professional).



Bachelor of Science, Construction Management and Pre-Law Studies

University of Illinois at Chicago


Master’s Certification, Applied, Project Management 

Villanova University


Professional Affiliations

Project Management Institute 

LEED® AP – US Green Building Council

Chief Engineers Association of Chicago