Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Waukesha, Wisconsin. The business holds a 5.0-star rating from four customer reviews and serves contractors throughout the greater Waukesha area. The retail location maintains Monday through Friday hours from 7 AM to 4:30 PM, with Saturday and Sunday closed.

The company distinguishes itself as a wholesale distributor offering an extensive catalog of HVAC equipment. Their inventory includes single packaged units, split systems, and mini-split systems for both residential and commercial applications. They stock gas furnaces, oil furnaces, evaporator coils, and air handlers, along with field-installed accessories. The business also provides extended warranty options and contractor training classes, positioning themselves as a resource for professional HVAC technicians rather than direct-to-consumer service.

One reviewer, Tory Quick, awarded five stars and described the team as a great group of guys who consistently help when customers find themselves in a bind. This feedback suggests the business prioritizes responsive support for contractor customers needing equipment or parts.