iOS App Now Available

Duncan Supply Mobile is now available in the iOS App Store for iPhones & iPads!

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Android App Now Available

Duncan Supply Mobile is now available in the Google Play Store for all Android devices

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eCommerce Online Store

Sign-up for Duncan Supply's eCommerce Online Store with over 13,000 online items in real time stock status at each branch location.

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Century Motors

Condenser Fan Motors, Direct Drive Fan & Blower Motors! 

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Century Motors Residential Products

What if ... Residential products were easy to install and were backed by years of industry innovation and reliability? 

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Vendor Spotlight

Events & Training

Branch Locations

View a map of our branches

Become a Vendor

Have new innovating products that Duncan Supply Company needs to sell?  Start the process below to become a vendor of Duncan Supply Company.

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Become a Customer

Interested in becoming a customer of Duncan Supply Company?  For more information, click below to start the process.

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Featured Vendors

Just as Duncan Supply has progressed from the use of crank telephones and note pads, to cell phones and e-mail, the increasing business usages of the Internet has challenged us all to harness the technology to provide state-of-the-art services to our customers.

View Our Featured Vendors