Our Services


DEI is a professional engineering firm specializing in building commissioning, retro-commissioning, and ‎energy management studies. We have been providing commissioning services since the early 1990s and we are proud to be veterans in this field. We are also an approved Federal Government contractor and are on the GSA’s Federal Supply ‎Schedule (GS21F0004U) for all our services.‎

DEI is fully certified by the AABC Commissioning Group (ACG) and has in-house licensed Professional Engineers and LEED accredited professionals. Most of our commissioning projects are performed with LEED certification as the client’s goal. Our engineers develop sustainable energy and ‎commissioning solutions and ensure ‎compliance with established building codes and ‎operational requirements. We pride ‎ourselves in providing environmentally sound and ‎innovative green consulting, ‎commissioning, and energy management services.‎

Our team provides innovative technical solutions to ‎optimize building operations. ‎We offer a full complement of energy and ‎commissioning services to make buildings work better and more efficiently. Lower building energy consumptions not only help our clients by reducing their facility operational costs, but also help our nation by protecting its natural resources.

Our basic goal is to ensure that buildings are constructed as designed, built to ‎sustainable green standards, and operate as they were intended. ‎

GSA C&A United States Green Building Council Energy Management Association