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

3,500+ Reasons Why You Want to be a Duncan Supply Vendor

With over 3,500 house accounts, Duncan Supply is the premier wholesaler for all HVAC/R needs, both equipment and supplies, in Indiana and Eastern Illinois. If you have the latest innovations, most reliable products on the market for any refrigeration or HVAC need, then you want to put your products in the good hands of Duncan Supply.

Click Here to contact someone at Duncan Supply about getting your products on our shelves.