Let BERG be the energy experts for your building project.  

For new buildings, we prefer to be involved from project conception as the integrated design consultant. Within the first two weeks of the design process, the decisions affecting roughly 75% of energy use are made.  Bring us in while we have a chance to make a significant impact on your new building project.    

For existing buildings, we offer many levels of analysis and energy auditing.  We'll work hard to help your energy renovations and retrofits pay for themselves


Integrated design consultants

Whole-building energy simulation

Zero-energy home designs

Building energy audits

Building commissioning (Cx)

LEED Consulting

Renewable energy consulting

Daylighting Analysis

Rebates and grants

Consumer preference studies

Architectural design assistance


Existing Buildings

Existing Buildings

Integrated Design

Integrated Design