Established in 1969, J.W. Koehler Electric Inc. provides a wide array of electrical contracting services to some of the largest manufacturing facilities. The company provides system evaluation, design and installation of various types of electrical systems, such as substations, generators, transfer switches, high voltage testing, control systems/instrumentation, conveyor systems and furnace installation. In addition, it offers a broad variety of commercial services, such as lighting and daylight harvesting, efficiency lighting control systems, security door access control systems and many more. J.W. Koehler Electric Inc. is located in Davenport, Iowa.