About Us

Founded in 2015, 21 Electric started in Newcastle Wyoming with aspirations to become the go-to contractor in the area for all your electrical needs. Since then, we have grown to a company employing 36 talented and skilled technicians from various fields and backgrounds. We currently service the immediate area around our shops in Newcastle WY, Sundance WY, Custer SD, but travel as far as required by our customers. 

21 Electric built its current headquarters in 2020, and expanded into Sundance WY and Custer SD in 2023.

We employ Master Electricians and Plumbers in the state of South Dakota and Wyoming to best serve our communities. 

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Departments Include: Commercial and Residential Plumbing and HVAC, Electrical, and a newly added UL-508A Custom Panel shop.

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Choose 21 Electric for all your electrical needs. We are committed to delivering high-quality services, ensuring safety, and optimizing energy efficiency in every project. Our experienced team is dedicated to exceeding your expectations and keeping your electrical systems running smoothly. Contact us today for reliable and professional electrical solutions!