Quality Products + Comprehensive Inventory = Quality Service



We Proudly Distribute Quality American Made HVAC Products From Champion® Heating & Cooling As Well As SOURCE 1 Parts


JCI (Champion) and Janesville Winsupply are committed to helping you grow your business with World Class HVAC Products and Superior Customer Service. Ask today how you can become a dealer and take full advantage of the Industry Leading Business Support Tools that are available. JCI has also partnered with Make-A-Wish to make sure that every purchase will bring a smile to the faces of children diagnosed with a life-threatening medical condition.  Call Today 800-784-4746 or 608-752-4746

Sales Specials / New Products


At Janesville Winsupply, we have put in countless hours, to make sure that your online experience with us is the best that it can be.  We always enjoy seeing customers at our store, but if... more

Find products easily by manufacturer or category. Flexible payment options. Quickly reorder.

Easy access 24/7!  We now have our complete inventory online!  Need som... more

Calendar Events

Glentronics Training Class

Tuesday, May 7th • 4:00-6:00 pm

• Learn About Glentronics PHCC Pro Series Sump Pumps, Sewage Pumps and Battery... more