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GWS has been around from the beginning of this program. We helped certify the first LEED home in the nation.

GWS provides both residential and commercial energy rating services. We also inspect for all national green and above code building programs and for the IRC/IECC Energy Codes.
We and our national network of Certified Home Energy Auditors/Raters have performed over 100,000 energy ratings and have certified over 50,000 Energy Star homes.
GWS helped pioneer the use of blower door technology in performance testing, which is the cornerstone of the RESNET HERS Index.
In 1994, GWS worked with the Environmental Protection Agency (EPA) to develop the first Builder Option Packages (BOPs) for the Energy Star Program.
GWS was the first provider for the Energy Star Program in the States of Texas and Oklahoma. The company was recognized in 1997 by the Environmental Protection Agency as the first nationwide program for the construction of Energy Star Homes.
GWS, Inc. has evolved into one of the nation's leading firms specializing in Energy Efficiency Engineering and Building Science Consulting. GWS provides both residential and commercial engineering and commissioning.
GWS is a Certified Minority Business Enterprise #12-0047

Membership
April 19, 2004 - April 19, 2014