Halpain Engineering, 7100 NW 63rd St, Ste 1000, Bethany, OK 73008, US

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.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. GWS certified the first LEED home in the nation.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 provides consulting services to federal, state, and municipal agencies to help transition them into more energy efficient and sustainable building programs. GWS is a Certified Minority Business Enterprise #12-0047