Johnstone Supply

Johnstone Supply operates as a wholesale-only HVAC equipment distributor in Tucson, Arizona, serving licensed contractors rather than retail customers. With a 3.8-star rating drawn from 22 verified reviews, the location functions as a regional hub for professional heating and cooling professionals across the greater Tucson metro. The store maintains standard commercial hours from 7 AM to 5 PM Monday through Friday, closed on weekends. This business model means homeowners seeking direct equipment purchases orDIY solutions will need to work through an established licensed HVAC contractor rather than visiting the location independently.

The distributor maintains an extensive inventory spanning multiple equipment categories visible on their digital storefront. Their catalog includes residential systems such as gas furnaces, heat pumps, and mini-split configurations alongside commercial packaged units and split system architectures. Beyond equipment, they stock an comprehensive parts department featuring refrigeration components, electrical controls, heat pump accessories, and OEM replacements. The parts division carries items ranging from compressors and motors to more specialized offerings like defrost heaters, sight glasses, and capillary tubing. Their inventory also addresses specialty categories including geothermal units, infrared heaters, and evaporative cooling systems frequently used in the Southwestern climate.

Customer feedback highlights mixed experiences with this contractor-only model. Positive reviews consistently name specific team members, with Raymundo Miranda noting Jose and Victor provided excellent assistance during his visit. Richard Tufariello described the staff as knowledgeable and the prices as competitive, crediting a supervisor referral for his first visit. However, multiple reviewers emphasize the exclusivity: Jay N. spent ten minutes on hold only to learn retail sales are not permitted, while Jared Smith cautions that only licensed HVAC professionals can establish accounts. These accounts suggest the business excels when serving established contractor relationships rather than facilitating new customer inquiries.