Johnstone Supply

Johnstone Supply operates as an HVAC equipment wholesaler serving the Spokane, Washington region from a single storefront location. With a solid 4.6-star rating drawn from 29 customer reviews, this supply house functions as a pro contractor hub, stocking the components and systems that licensed technicians install in residential and commercial buildings throughout the Inland Northwest.

Unlike retail hardware stores, Johnstone Supply maintains a contractor-only distribution model with an extensive catalog spanning major equipment categories. Their inventory includes commercial split systems, mini-splits with variable capacity, geothermal units, and manufactured housing solutions, alongside the full complement of controls, coils, compressors, and specialty parts that keep service trucks rolling. The Spokane location carries products from leading manufacturers across the residential and commercial segments.

Customer feedback highlights several staff members by name. DJ earned praise for helping size a replacement furnace and expedite shipping for a time-sensitive job. Darren, Steve (multiple Steves appear in reviews), Sam, and the broader team received recognition for having obscure parts in stock, enabling same-day job completion and delivering what one reviewer calls the best HVAC supply house in town.