DEI Consulting
8381 Old Courthouse Road, Suite 340, Vienna, Virginia, United States

DEI is a professional consulting firm specializing in building commissioning, retro-commissioning, energy management, and facility assessments. We provide building owners and operators a high level of assurance that their installed systems are operating within the performance guidelines specified in the project construction documents and design intent. DEI’s keen knowledge of today's high-tech building systems provides building owners with an unbiased perspective of their system installation, operation, performance, and efficiency.

DEI expertise lies in providing services in the following areas

• Building Commissioning and Retro-Commissioning
• Energy Management and Energy Use Evaluations
• LEED Certifications
• Thermographic Testing of Building Envelope and Electrical/Mechanical Equipment
• Duct System Pressurization and Cleanliness Testing

In all of our service areas we strive to

• Represent the Owner’s Best Long-Term Construction and Operations Interest
• Integrate Superior Quality and Performance Into Our Daily Work
• Improve Building Operations and Efficiency
• Foster Teamwork Among Project Team Members
• Maximize Value/Return of Owner’s Investment