Johnstone Supply

Johnstone Supply in Rock Hill, South Carolina operates as a heating equipment and parts distributor serving licensed HVAC contractors across the region. With 13 reviews averaging 3.7 stars, the store functions as a contractor-only supplier, a distinction worth noting for homeowners seeking direct service. The location maintains standard commercial hours Monday through Friday from 7:30 AM to 5 PM, closed on weekends. Reviewers frequently reference the Rock Hill store as part of a broader network, with some comparing it to other Johnstone Supply locations in the area.

The Rock Hill branch stocks comprehensive HVAC equipment spanning residential and commercial categories. Website listings show single packaged units, split systems, mini-split systems including variable capacity and multi-zone configurations, evaporator coils, gas furnaces, and oil furnaces. The business operates as a distribution outlet rather than a service contractor, meaning they supply equipment and parts to licensed professionals rather than performing installations or repairs directly. This contractor-only model explains why certain reviews mention being turned away when attempting to purchase without proper licensing.

Customer experiences reveal named technicians making notable service impacts. Cody at the Rock Hill location earned praise for helping a customer find a fan blade, then going further by providing a referral to another local supplier when the exact part wasn't available, he even offered ice cream to the customer's daughter during the visit. Multiple five-star reviews cite Michael S's leadership at the branch, with Kevin Rollins describing it as his go-to source for all HVAC supply needs. However, negative feedback centers on dress-code enforcement and the contractor-only policy, with one reviewer noting they were turned away for wearing work boots, jeans, and a T-shirt.