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Our Projects

We Build Projects That Last

We stand by every project with the upmost integrity and confidence. If it was built by us, its built to last. 

Head Office

914 South Summit Ave 

Newcastle, WY 82701

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48 Government Valley Rd

 Sundance, WY 82729

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11953 Pleasant Valley Rd. 

Custer, SD 57730

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1220 Creek Drive

Rapid City, SD 57703

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808 E. 6th Street

Gillette, WY 82716

Inquiries

For any inquiries, questions or commendations, please call: 307-746-9788

605-673-2087

Custer Direct Line

© 2026 By 21 Electric LLC, All rights reserved.

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