Interstate Electrical has extensive design/build experience in both substations and industrial applications. We are able to take design criteria, prepare preliminary outline drawings and furnish a hard dollar price. Our services include turnkey substations where we develop everything needed for a complete substation package. We've been active in many states. We concentrate on projects in the Rocky Mountain and Southwestern Areas of the United States. Interstate Electrical Contractors did a very good job at completing this project in the time specified with attention to detail and workmanship.

Founded in 1984 by James A. Cillessen and Joyce K. Cillessen, Interstate Electrical Contractors, Inc. has grown to be an experienced electrical contractor in the Midwest and Western United States. Interstate Electrical Contractors has successfully completed hundreds of substations and underground medium voltage distribution projects throughout the United States. Using the three core principles of Safety, Quality, and Productivity, IEC has successfully executed these jobs. We are a long-standing member of Associated Builders and Contractors (ABC).

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