GHT helps optimize building performance. We provide sustainable mechanical, electrical, and plumbing (MEP) engineering services for commercial office buildings, tenant interiors, and government properties, as well as institutional, hospitality, and mission critical environments. GHT’s areas of expertise include MEP system design, commissioning, building energy services, and real estate advisory services. Based in Arlington, VA, GHT is one of the largest locally owned and headquartered MEP consultants in the Washington DC metro area. Since our founding in 1965, GHT has remained on the leading edge of technology to deliver sustainable MEP engineering solutions that balance comfort, efficiency, and purpose.