Johnstone Supply

Johnstone Supply in Upland, California operates as a heating equipment supplier serving the broader Inland Empire region. The location maintains a 4.0-star rating drawn from 19 customer reviews, with a solid base of five-star feedback balanced against some critical voices. Business hours run Monday through Friday from 7 AM to 5 PM, with Saturday availability until noon and Sunday closure. The shop functions as a distributor offering both commercial and residential HVAC equipment, with a catalog spanning packaged units, split systems, gas and oil furnaces, air handlers, and evaporator coils. While marketing materials suggest a contractor-focused model, reviewer accounts confirm sales to the general public for parts and complete equipment purchases.

The Upland branch distinguishes itself through an extensive product catalog that exceeds typical big-box retail offerings. Website listings reveal specialized categories including mini-split multi-zone and variable capacity systems, manufactured housing equipment, and field-installed accessories. The shop carries major residential brands across gas furnaces, oil furnaces, and extended warranty options. A reviewer specifically notes the availability of filtration products that competing retailers in the area do not stock, suggesting inventory depth beyond standard residential supplies. Commercial offerings include single packaged units and split system configurations alongside evaporator coil and installation accessory lines.

Customer accounts name specific team members who have shaped their service experiences. A reviewer describes Rich as helpful and knowledgeable during a straightforward parts transaction, while another customer recounts positive interactions with staff who made it easy to translate professionalcourtesy to their own clients. One reviewer notes a warranty dispute involving a noisy Goodman compressor where management assistance fell short, resulting in the customer purchasing replacement equipment elsewhere. Another account describes extended hold times followed by an unsatisfactory callback experience. These varied experiences suggest service quality that depends significantly on timing and specific staff interactions.