Johnstone Supply

Johnstone Supply operates as a heating equipment supplier in Summerville, South Carolina, serving licensed HVAC contractors and trades professionals across the region. The business maintains a 4.4-star rating derived from 48 customer reviews, reflecting consistent service quality in a specialized distribution model. Open Monday through Friday from 7:30 AM to 5 PM, the store provides counter service and will-call pickup for contractors holding accounts or those willing to establish one.

The supplier stocks an extensive inventory spanning residential and commercial HVAC categories, including split systems, single packaged units, mini-split systems, gas furnaces, oil furnaces, air handlers, and evaporator coils. They carry variable capacity systems and multi-zone configurations suitable for both new construction and retrofit applications, along with extended warranty programs for select equipment lines. The product breadth covers field-installed accessories and specialty evaporation units for specialized implementations.

Customer reviews repeatedly recognize specific staff members for their product knowledge and service approach. Keith, Todd, and counter personnel receive commendation for helping contractors locate hard-to-find repair parts and answering technical questions about equipment compatibility. One reviewer describes an instance where staff supported his needs despite a challenging parts search. The business maintains a contractor-focused model, serving trades professionals who perform installation and repair work for homeowners.