W.A. Chester, L.L.C., an electrical contractor, engages in the installation, maintenance, and repair of underground high voltage cable transmission and distribution systems. The company also offers specialized services in overhead distribution, substations, and communications. Its clients include electric utility companies and independent power producers in the United States. W.A. Chester, L.L.C. was formerly known as Henry Ihle Company and changed its name in 1955. The company is based in Lanham, Maryland. W.A. Chester, LLC operates as a subsidiary of Exelon Generation Company, LLC.