About Us

At Johnstone Supply of the Upper Midwest, we believe in training technicians to tackle the ever-evolving world of HVAC/R. 

 

We believe that our skill based trainings decrease call-backs, improve efficiency, and improve customer relations by helping create confident and proficient technicians.  From refresher trainings in person to online trainings to building a technician from the ground up, we are dedicated to making sure your team of technicians is ready to tackle real world problems in the field.