About Us

Key Wholesaler Specials!

Key Wholesaler Specials! As a member of Key Wholesaler Group, this month we are proud to be working with Nu-Calgon!  Check out their featured products by contacting your local DSC Branch for more information.


Get the Deals!

Branch Locations

Branch Locations Looking for a branch of Duncan Supply near you? Visit our branch location page to find out how close you are.

View a map of our branches

Check out the news!

Check out the news! Don't forget to check back frequently under News & Promotions to see what Duncan Supply has to offer to you as a customer. And learn about the leading headline news in the HVAC/R industry.

News & Promotions

Since inception in 1936, Duncan Supply Company has taken pride in delivering the highest quality and best value to our customers. This philosophy has helped us grow into an industry leader, distributing a wide range of refrigeration, air conditioning, heating equipment, and accessories to customers, throughout central Indiana and Illinois.

As our many satisfied customers have come to know, Duncan Supply offers products and services you can depend on as a convenient, cost-effective partnership that will help your business succeed.

If you have any questions or would like to learn more about what Duncan Supply has to offer please feel free to contact anyone at Duncan Supply. If you would like to reach out to any of our officers you can find contact information below.

From Left to Right:
Dick McClure (Vice-President): dickmcclure@duncansupply.com

Rick Fine (President & CEO): rickfine@duncansupply.com
Randy Roberson (Vice-President): randyroberson@duncansupply.com