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Your Building Science Consultants
The Smart Way to Buy a Home

Before buying a home, learn about its energy efficiency.

Learn more about a home's energy efficiency by having it professionally inspected.

Before building a home, learn more about its energy efficiency by having it professionally inspected. We are an experienced, certified building science company.

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Energy expenses are the second greatest expense to owning a home, after the mortgage. The wise choice is to decrease and manage that cost by paying attention to your home's energy efficiency. If you're a homebuilder that wants to provide your client with a more efficient new home, we can help.

What is the HERS Index?

RESNET HERS IndexThe Home Energy Rating System (HERS) Index is the industry standard by which a home's energy efficiency is measured. It’s also the nationally recognized system for inspecting and calculating a home's energy performance.


The Residential Energy Services Network (RESNET) developed the HERS Index and introduced it in 2006. Only a certified RESNET rater can calculate a home's official HERS Index score.

Government agencies such as the Department of Energy (DOE), Department of Housing and Urban Development (HUD) and the Environmental Protection Agency (EPA) recognize the HERS Index as an official verification of energy performance.

HERS Index

What does a HERS rating say about a house?
The HERS Index measures a home's energy efficiency and there are a lot of great reasons to have a home energy rating performed on your house.

It can tell you so much a new home, like how efficiently it will operate and where you can make modifications for greater energy savings. When you're selling a home, a low HERS Index Score can command a higher resale price. And when you’re building a home you can anticipate the costs of energy bills and efficiency upgrades.

How does the HERS Index work?
A certified Home Energy Rater assesses the energy efficiency of a home, assigning it a relative performance score. The lower the number, the more energy efficient the home.

The U.S. Department of Energy has determined that a typical resale home scores 130 on the HERS Index while a standard new home is awarded a rating of 100.

  • A home with a HERS Index Score of 70 is 30% more energy efficient than a standard new home
  • A home with a HERS Index Score of 130 is 30% less energy efficient than a standard new home


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Tulsa, OK
Phone: (539) 292-9254
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