Johnstone Supply is your one-stop shop for licensed contractors! Making it easier for HVACR contractors to do business. Johns ... tone Supply is the leading HVACR wholesale distributor of equipment, parts, and supplies, providing service to Residential, Light Commercial, Refrigeration and Facilities Maintenance contractors. With nearly 400 locally owned and operated stores nationwide and supported by six regional distribution centers, we offer the best product selection, customer service, training and productivity programs to help you grow your business and succeed. The Southern California group consists of 7 stores: El Cajon (headquarters), San Diego, Escondido, Temecula, Anaheim, Corona, and Palm Desert. We are always looking for hard-working & passionate people to join our team! Check out our available jobs to see if we're hiring at a store near you. read more