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Green Building Consulting/Energy Diagnostics

1401 Main St
Cincinnati, OH 45202
United States

Green Building Consulting (GBC) is the technical advisor for project and design teams in search of goal-oriented solutions to improving a structure's comfort, safety, durability, indoor air quality, energy efficiency and long-term cost of ownership. GBC accomplishes this through a consultative approach that allows us to partner with the client on their search for high-performance building education, analysis, design and/or certification. Our clients can include the owner, developer, builder and/or design team of commercial, mixed-use, multi-family, and single-family projects.

GBC and its affiliates were founded in 2000 by Barb Yankie. A regional pioneer in the green and energy efficiency certifications field, GBC is headquartered in downtown Cincinnati, Ohio and provides solutions for its clients in more than 14 states. Our services include consulting, certification, design support, energy code support, energy modeling, resource efficiency cost analysis, and green incentive analysis/design/award support. Additionally, since we do not design, sell products or construct buildings, we keep our completely independent third-party status intact. This allows our client to value our offerings as genuine and of the highest integrity without the concern of future competition for service.


Energy Diagnostics


405 E Archer Way,

Valparaiso, IN 46383

United States  



Energy Diagnostics, Inc., established in 1992, is one of the longest running and leading experts nationwide to provide LEED for Homes, National Green Building Standard, Enterprise Green Communities and Energy Star Certifications, completing over 40,000 Energy Star and HERS certifications to date. Our company worked to design and provide the very first NGBS Green certification for a land development, located in Burns Harbor, IN. 

Energy Diagnostics, Inc. has received many prestigious accolades, such as EPA Energy Star Partner of the Year, RESNET Rater of the Year, and NGBS Green Partner of the Year. Our company has been commissioned to do IECC code trainings in Michigan, Illinois, and Indiana, for builders, code officials, and other contractors. 

Energy Diagnostics has a professional staff of RESNET certified HERS raters, BPI certified field supervisors, NGBS Master Verifiers, LEED Homes AP's and accredited Green Verifiers. We also have a client base as dynamic as we are; we service the largest national home builders and large scale multifamily developers, down to the smallest local contractor, and everyone in between. We work with utility companies, architects, developers, state agencies, housing authorities, local municipalities, and HVAC contractors. 

Over the past years, we have built and maintained a reputation that reflects our commitment to accuracy, efficiency, and accountability for the work we put forth. The services that Energy Diagnostics, Inc. provide continue to be highly sought after, and our expertise in this field is unrivaled. We provide services nationwide, but focus our attention to the Indiana, Michigan, Illinois and Tennessee regions.

Our primary goal is to improve the housing stock to greatly reduce energy consumption while reducing pollutants protecting the environment for future generations. Remember "Our planet was not given to us by our parents, we are simply borrowing it from our children."

About Energy Diagnostics

Understanding The HERS Index

Green Building Consulting Services Overview