Dave Langhamer

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 through out 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 commonsense 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).

David W Langhamer

Founder, DW Hammer LLC
Aidan Mc Govern

Aidan Mc Govern, principal of DW Hammer, LLC, was born and raised in County Mayo, Ireland. Aidan graduated from Limerick Institute of Technology with a BSc in Construction Management. After moving to the United States in 1995 he became a resident of Chicago. Prior to joining DW Hammer, LLC., he worked with a Cost Estimating Firm and as a Senior Vice President for a Chicago based General Contractor. Aidan is an accomplished construction professional and is the Director of Operations at DW Hammer, LLC. He is very well respected by his clients and continuously obtains repeat work from several major corporations and organizations. Aidan is recognized by his clients for his integrity and tireless dedication to his projects.  He is an excellent mentor and developer of young talent and has given several construction professionals in the Chicago area a solid learning foundation. Aidan believes in giving back to the community and supports various local charities. 

Aidan Mc Govern

Director, DW Hammer LLC

Our Values


DW Hammer has built it's reputation of outstanding performance by surpassing client expectations. Our vast experience and hands-on project management, combined with our experienced leadership and network ensures that projects stay on-time and under-budget


We believe in the power of teamwork. We are recognized for being honest, modest, and hard-working, and for following through on commitments. We are proud of our reputation as a firm that clients can count on to do whatever it takes to get the job done.


The streamlined size of DW Hammer allows for innovation, flexibility, and for the ability to quickly adapt to a client’s needs. Our goal is to continuously improve our services based on today’s ever changing business climate.