Welcome to Design Air.

We are a full-service heating, ventilation and air conditioning (HVAC) wholesaler servicing clients throughout Wisconsin and Upper Michigan.

Recognized as a leader in HVAC design, Design Air is a major supplier of forced air and hydronic heating & cooling systems and HVAC supplies. We combine knowledgeable professionals, computer-assisted design (CAD), timely delivery, industry training, reliable products, and competitive pricing to give our customers an edge in the marketplace.

St. Lucia Customer Trip - March 2011

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Click on the "Customer Login Access" tab to the left, enter your password, and scroll to the bottom of the page for program details and registration form! 

 

Read about us in Wisconsin Perspective Magazine. Wisconsin Perspective is a publication for the Wisconsin / U.P. Plumbing - HVAC - Mechanical and Related Industry.

 

 

Kimberly, WI: 1-800-444-0101
Green Bay, WI: 1-800-444-1798
Iron Mountain, MI: 1-800-490-4904
Madison, WI: 1-888-535-5595
Milwaukee, WI: 1-800-569-3389
Wausau, WI: 1-888-363-4779
West Allis, WI: 1-800-494-4259

© Design Air - a division of U.S. Oil Company, Incorporated
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