scope of Services

Infographic about why HERS rated homes are better

Providing innovative energy efficiency and sustainability solutions to builders and developers.

Energy Diagnostics is dedicated to improving the efficiency, environmental impact, and comfort of residential and commercial buildings. 

For nearly 30 years we have helped builders and developers optimize the performance of their projects by providing energy code compliance services. We draw on our diverse experience on hundreds of projects to provide customized solutions for your specific energy efficiency needs. 

If it has to do with energy code and performance, we are here to help. Give us a call at (219) 464-4457 or contact us here to request additional information.

Our Services

Why Choose Energy Diagnostics?

  • A one-stop shop for all of your energy needs
  • We are professionals committed to stay on the forefront of changes and products
  • Our staff is large enough to facilitate scheduling needs, but small enough to guarantee personal attention 
  • Third party verification ensures non-biased and accurate services
  • Quick turn time for needed documents
  • We help solve any energy question or problem

Fritz Olthof

Olthof Homes

"Olthof Homes has partnered with Energy Diagnostics for many years. We’ve found their services to be professional, accurate and timely. I would recommend them to anyone seeking energy rating assistance."

Michael O’Donnell

O’Donnell Homes

"I have had the pleasure of working with Energy Diagnostics for over 15 years. They conduct their business in very timely, efficient and professional manner. I build more energy efficient homes because of their suggestions. I strongly recommend them.”

Steve Baden

RESNET Executive Director

"I am happy to provide a reference for Energy Diagnostics Inc., a RESNET certified HERS rating company that has been in business for 19 year in the field of rating the energy performance of buildings. Energy Diagnostics has a staff of HERS raters, BPI auditors, NAHB Green and LEED raters and energy code professionals. Among some of their achievements is the national 2007 RESNET Market Transformation Award and the 2010 Energy Star partner of the year award.

Energy Diagnostics has rated over 12,000 homes. Energy Diagnostics serves the states of Indiana, Illinois and Michigan. Its services includes verification of EPA Energy Star homes and the federal tax credit for energy efficient homes, conducting ARRA funded home energy audits, and 2009 IECC code training for home builder associations in the three state area.

Energy Diagnostics Inc. is a leader in the energy rating industry and you can feel confident in their ability to provide accurate energy rating calculations and field verification and test results."