Contractors Building Supply Inc.
About Us

Located in the Village of Copemish, Contractors Building Supply, Inc.  has been in the renewable energy business for nearly 40 years.  We have a qualified team to meet any of your renewable energy needs. From design and installation to energy assessing and consulting, CBSI is here to help you save money on your electric bill. From the smallest system for your home to the largest system for your business, CBSI has the experience and knowledge to do the job right!

Call today and speak to one of our team members to see what CBSI can do for you!

Meet our Team

 Communications and Sales

 Engineering and Service


Logistics and

Energy Efficiency and
Project Coordinator

Allan O'Shea

Tyson O'Shea

Lynda O'Shea

 Tom Bigelow

 Aaron O'Shea

Mary McGraw-Bigelow

Devon O'Shea

Pam Garn


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